SCHEMALL
here
Sign in
© 2026 Schemall
·
The source of structured meaning
About
API
Support
Brand
Terms
Privacy
SCHEMALL
here
Sign in
Vocabularies
Classes
Properties
Enumerations
Enummembers
Persons
Organizations
Vocabularies
Classes
Properties
Enumerations
Enummembers
Persons
Organizations
secondaryPrevention · Validation · Schemall
schema.org
›
properties
›
secondaryPrevention
About
Expected types
Validation
Options
i18n
Changes
JSON Schema
JSON Schema is valid.
Test data