The subject matter of an object.
Indicates that the resource is compatible with the referenced accessibility API. Values should be drawn from the [approved vocabulary](https://www.w3.org/2021/a11y-discov-vocab/latest/#accessibilityAPI-vocabulary).
Identifies input methods that are sufficient to fully control the described resource. Values should be drawn from the [approved vocabulary](https://www.w3.org/2021/a11y-discov-vocab/latest/#accessibilityControl-vocabulary).
Content features of the resource, such as accessible media, alternatives and supported enhancements for accessibility. Values should be drawn from the [approved vocabulary](https://www.w3.org/2021/a11y-discov-vocab/latest/#accessibilityFeature-vocabulary).
A characteristic of the described resource that is physiologically dangerous to some users. Related to WCAG 2.0 guideline 2.3. Values should be drawn from the [approved vocabulary](https://www.w3.org/2021/a11y-discov-vocab/latest/#accessibilityHazard-vocabulary).
A human-readable summary of specific accessibility features or deficiencies, consistent with the other accessibility metadata but expressing subtleties such as "short descriptions are present but long descriptions will be needed for non-visual users" or "short descriptions are present and no long descriptions are needed".
A list of single or combined access modes that are sufficient to understand all the intellectual content of a resource, including any adaptations. Values should be drawn from the [approved vocabulary](https://www.w3.org/2021/a11y-discov-vocab/latest/#accessModeSufficient-vocabulary).
Specifies the Person that is legally accountable for the CreativeWork.
An actor (individual or a group), e.g. in TV, radio, movie, video games etc., or in an event. Actors can be associated with individual items or with a series, episode, clip.
An additional type for the item, typically used for adding more specific types from external vocabularies in microdata syntax. This is a relationship between something and a class that the thing is in. Typically the value is a URI-identified RDF class, and in this case corresponds to the use of rdf:type in RDF. Text values can be used sparingly, for cases where useful information can be added without their being an appropriate schema to reference. In the case of text values, the class label should follow the schema.org [style guide](https://schema.org/docs/styleguide.html).
The overall rating, based on a collection of reviews or ratings, of the item.
An alias for the item.
A secondary title of the CreativeWork.
A media object that encodes this CreativeWork. This property is a synonym for encoding.
A person or organization attending the event.
A person attending the event.
An intended audience, i.e. a group for whom something was created.
An embedded audio object.
The author of this content or rating. Please note that author is special in that HTML 5 provides a special mechanism for indicating authorship via the rel tag. That is equivalent to this and may be used interchangeably.
An award won by or for this item.
Fictional person connected with a creative work.
A citation or reference to another creative work, such as another publication, web page, scholarly article, etc.
Comments, typically from users.
The number of comments this CreativeWork (e.g. Article, Question or Answer) has received. This is most applicable to works published in Web sites with commenting system; additional comments may exist elsewhere.
The person or organization who wrote a composition, or who is the composer of a work performed at some event.
The location depicted or described in the content. For example, the location in a photograph or painting.
Official rating of a piece of content—for example, 'MPAA PG-13'.
The specific time described by a creative work, for works (e.g. articles, video objects etc.) that emphasise a particular moment within an Event.
A secondary contributor to the CreativeWork or Event.
The party holding the legal copyright to the CreativeWork.
The year during which the claimed copyright for the CreativeWork was first asserted.
The creator/author of this CreativeWork. This is the same as the Author property for CreativeWork.
The date on which the CreativeWork was created or the item was added to a DataFeed.
The date on which the CreativeWork was most recently modified or when the item's entry was modified within a DataFeed.
Date of first publication or broadcast. For example the date a [CreativeWork](https://schema.org/CreativeWork) was broadcast or a [Certification](https://schema.org/Certification) was issued.
A description of the item.
A director of e.g. TV, radio, movie, video gaming etc. content, or of an event. Directors can be associated with individual items or with a series, episode, clip.
A sub property of description. A short description of the item used to disambiguate from other, similar items. Information from other properties (in particular, name) may be necessary for the description to be useful for disambiguation.
A link to the page containing the comments of the CreativeWork.
The time admission will commence.
The duration of the item (movie, audio recording, event, etc.) in [ISO 8601 duration format](http://en.wikipedia.org/wiki/ISO_8601).
Specifies the Person who edited the CreativeWork.
An alignment to an established educational framework.
This property should not be used where the nature of the alignment can be described using a simple property, for example to express that a resource [teaches](https://schema.org/teaches) or [assesses](https://schema.org/assesses) a competency.
The purpose of a work in the context of education; for example, 'assignment', 'group work'.
A media object that encodes this CreativeWork. This property is a synonym for associatedMedia.
A media object that encodes this CreativeWork.
The end date and time of the item (in [ISO 8601 date format](http://en.wikipedia.org/wiki/ISO_8601)).
The eventAttendanceMode of an event indicates whether it occurs online, offline, or a mix.
Associates an [Event](https://schema.org/Event) with a [Schedule](https://schema.org/Schedule). There are circumstances where it is preferable to share a schedule for a series of repeating events rather than data on the individual events themselves. For example, a website or application might prefer to publish a schedule for a weekly gym class rather than provide data on every event. A schedule could be processed by applications to add forthcoming events to a calendar. An [Event](https://schema.org/Event) that is associated with a [Schedule](https://schema.org/Schedule) using this property should not have [startDate](https://schema.org/startDate) or [endDate](https://schema.org/endDate) properties. These are instead defined within the associated [Schedule](https://schema.org/Schedule), this avoids any ambiguity for clients using the data. The property might have repeated values to specify different schedules, e.g. for different months or seasons.
An eventStatus of an event represents its status; particularly useful when an event is cancelled or rescheduled.
A creative work that this work is an example/instance/realization/derivation of.
Date the content expires and is no longer useful or available. For example a [VideoObject](https://schema.org/VideoObject) or [NewsArticle](https://schema.org/NewsArticle) whose availability or relevance is time-limited, a [ClaimReview](https://schema.org/ClaimReview) fact check whose publisher wants to indicate that it may no longer be relevant (or helpful to highlight) after some date, or a [Certification](https://schema.org/Certification) the validity has expired.
Media type, typically MIME format (see [IANA site](http://www.iana.org/assignments/media-types/media-types.xhtml)) of the content, e.g. application/zip of a SoftwareApplication binary. In cases where a CreativeWork has several media type representations, 'encoding' can be used to indicate each MediaObject alongside particular fileFormat information. Unregistered or niche file formats can be indicated instead via the most appropriate URL, e.g. defining Web page or a Wikipedia entry.
A person or organization that supports (sponsors) something through some kind of financial contribution.
A [Grant](https://schema.org/Grant) that directly or indirectly provide funding or sponsorship for this item. See also [ownershipFundingInfo](https://schema.org/ownershipFundingInfo).
Genre of the creative work, broadcast channel or group.
Indicates an item or CreativeWork that is part of this item, or CreativeWork (in some sense).
An offer to participate in the event, for example, Call for Proposals, Call for Speakers, or Call for Performers.
An offer to sponsor the event, for example, Sponsorship Prospectus, Sponsorship Opportunities, or Sponsor Packages.
Headline of the article.
The identifier property represents any kind of identifier for any kind of [Thing](https://schema.org/Thing), such as ISBNs, GTIN codes, UUIDs etc. Schema.org provides dedicated properties for representing many of these, either as textual strings or as URL (URI) links. See [background notes](https://schema.org/docs/datamodel.html#identifierBg) for more details.
An image of the item. This can be a [URL](https://schema.org/URL) or a fully described [ImageObject](https://schema.org/ImageObject).
The language of the content or performance or used in an action. Please use one of the language codes from the [IETF BCP 47 standard](http://tools.ietf.org/html/bcp47). See also [availableLanguage](https://schema.org/availableLanguage).
The number of interactions for the CreativeWork using the WebSite or SoftwareApplication. The most specific child type of InteractionCounter should be used.
The predominant mode of learning supported by the learning resource. Acceptable values are 'active', 'expositive', or 'mixed'.
A flag to signal that the item, event, or place is accessible for free.
A resource from which this work is derived or from which it is a modification or adaptation.
A resource that was used in the creation of this resource. This term can be repeated for multiple sources. For example, http://example.com/great-multiplication-intro.html.
Indicates whether this content is family friendly.
Indicates an item or CreativeWork that this item, or CreativeWork (in some sense), is part of.
Keywords or tags used to describe some item. Multiple textual entries in a keywords list are typically delimited by commas, or by repeating the property.
The predominant type or kind characterizing the learning resource. For example, 'presentation', 'handout'.
A license document that applies to this content, typically indicated by URL.
The location of, for example, where an event is happening, where an organization is located, or where an action takes place.
The location where the CreativeWork was created, which may not be the same as the location depicted in the CreativeWork.
Indicates the primary entity described in some page or other CreativeWork.
Indicates a page (or other CreativeWork) for which this thing is the main entity being described. See [background notes](https://schema.org/docs/datamodel.html#mainEntityBackground) for details.
A material that something is made from, e.g. leather, wool, cotton, paper.
The total number of individuals that may attend an event or venue.
The maximum physical attendee capacity of an [Event](https://schema.org/Event) whose [eventAttendanceMode](https://schema.org/eventAttendanceMode) is [OfflineEventAttendanceMode](https://schema.org/OfflineEventAttendanceMode) (or the offline aspects, in the case of a [MixedEventAttendanceMode](https://schema.org/MixedEventAttendanceMode)).
The maximum virtual attendee capacity of an [Event](https://schema.org/Event) whose [eventAttendanceMode](https://schema.org/eventAttendanceMode) is [OnlineEventAttendanceMode](https://schema.org/OnlineEventAttendanceMode) (or the online aspects, in the case of a [MixedEventAttendanceMode](https://schema.org/MixedEventAttendanceMode)).
Indicates that the CreativeWork contains a reference to, but is not necessarily about a concept.
The name of the item.
An offer to provide this item—for example, an offer to sell a product, rent the DVD of a movie, perform a service, or give away tickets to an event. Use [businessFunction](https://schema.org/businessFunction) to indicate the kind of transaction offered, i.e. sell, lease, etc. This property can also be used to describe a [Demand](https://schema.org/Demand). While this property is listed as expected on a number of common types, it can be used in others. In that case, using a second type, such as Product or a subtype of Product, can clarify the nature of the offer.
An organizer of an Event.
A person or organization who owns this Thing.
A performer at the event—for example, a presenter, musician, musical group or actor.
The main performer or performers of the event—for example, a presenter, musician, or actor.
The position of an item in a series or sequence of items.
Indicates a potential Action, which describes an idealized action in which this thing would play an 'object' role.
Used in conjunction with eventStatus for rescheduled or cancelled events. This property contains the previously scheduled start date. For rescheduled events, the startDate property should be used for the newly scheduled start date. In the (rare) case of an event that has been postponed and rescheduled multiple times, this field may be repeated.
The person or organization who produced the work (e.g. music album, movie, TV/radio series etc.).
The service provider, service operator, or service performer; the goods producer. Another party (a seller) may offer those services or goods on behalf of the provider. A provider may also serve as the seller.
A publication event associated with the item.
The publisher of the article in question.
The publishing division which published the comic.
The publishingPrinciples property indicates (typically via [URL](https://schema.org/URL)) a document describing the editorial principles of an [Organization](https://schema.org/Organization) (or individual, e.g. a [Person](https://schema.org/Person) writing a blog) that relate to their activities as a publisher, e.g. ethics or diversity policies. When applied to a [CreativeWork](https://schema.org/CreativeWork) (e.g. [NewsArticle](https://schema.org/NewsArticle)) the principles are those of the party primarily responsible for the creation of the [CreativeWork](https://schema.org/CreativeWork).
While such policies are most typically expressed in natural language, sometimes related information (e.g. indicating a [funder](https://schema.org/funder)) can be expressed using schema.org terminology.
The Event where the CreativeWork was recorded. The CreativeWork may capture all or part of the event.
The CreativeWork that captured all or part of this Event.
The place and time the release was issued, expressed as a PublicationEvent.
The number of attendee places for an event that remain unallocated.
A review of the item.
Review of the item.
URL of a reference Web page that unambiguously indicates the item's identity. E.g. the URL of the item's Wikipedia page, Wikidata entry, or official website.
Indicates (by URL or string) a particular version of a schema used in some CreativeWork. This property was created primarily to indicate the use of a specific schema.org release, e.g. `10.0` as a simple string, or more explicitly via URL, `https://schema.org/docs/releases.html#v10.0`. There may be situations in which other schemas might usefully be referenced this way, e.g. `http://dublincore.org/specifications/dublin-core/dces/1999-07-02/` but this has not been carefully explored in the community.
The Organization on whose behalf the creator was working.
The spatialCoverage of a CreativeWork indicates the place(s) which are the focus of the content. It is a subproperty of
contentLocation intended primarily for more technical and detailed materials. For example with a Dataset, it indicates
areas that the dataset describes: a dataset of New York weather would have spatialCoverage which was the place: the state of New York.
A person or organization that supports a thing through a pledge, promise, or financial contribution. E.g. a sponsor of a Medical Study or a corporate sponsor of an event.
The start date and time of the item (in [ISO 8601 date format](http://en.wikipedia.org/wiki/ISO_8601)).
An Event that is part of this event. For example, a conference event includes many presentations, each of which is a subEvent of the conference.
Events that are a part of this event. For example, a conference event includes many presentations, each subEvents of the conference.
A CreativeWork or Event about this Thing.
An event that this event is a part of. For example, a collection of individual music performances might each have a music festival as their superEvent.
The temporalCoverage of a CreativeWork indicates the period that the content applies to, i.e. that it describes, either as a DateTime or as a textual string indicating a time period in [ISO 8601 time interval format](https://en.wikipedia.org/wiki/ISO_8601#Time_intervals). In the case of a Dataset it will typically indicate the relevant time period in a precise notation (e.g. for a 2011 census dataset, the year 2011 would be written "2011/2012"). Other forms of content, e.g. ScholarlyArticle, Book, TVSeries or TVEpisode, may indicate their temporalCoverage in broader terms - textually or via well-known URL. Written works such as books may sometimes have precise temporal coverage too, e.g. a work set in 1939 - 1945 can be indicated in ISO 8601 interval format format via "1939/1945".
Open-ended date ranges can be written with ".." in place of the end date. For example, "2015-11/.." indicates a range beginning in November 2015 and with no specified final date. This is tentative and might be updated in future when ISO 8601 is officially updated.
The textual content of this CreativeWork.
A thumbnail image relevant to the Thing.
Approximate or typical time it usually takes to work with or through the content of this work for the typical or target audience.
The work that this work has been translated from. E.g. 物种起源 is a translationOf “On the Origin of Species”.
Organization or person who adapts a creative work to different languages, regional differences and technical requirements of a target market, or that translates during some event.
The typical expected age range, e.g. '7-9', '11-'.
URL of the item.
The version of the CreativeWork embodied by a specified resource.
An embedded video object.
Example/instance/realization/derivation of the concept of this creative work. E.g. the paperback edition, first edition, or e-book.
A work featured in some event, e.g. exhibited in an ExhibitionEvent.
Specific subproperties are available for workPerformed (e.g. a play), or a workPresented (a Movie at a ScreeningEvent).
A work performed in some event, for example a play performed in a TheaterEvent.
A work that is a translation of the content of this work. E.g. 西遊記 has an English workTranslation “Journey to the West”, a German workTranslation “Monkeys Pilgerfahrt” and a Vietnamese translation Tây du ký bình khảo.