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knowsLanguage

A Schema.org Property

This term is proposed for full integration into Schema.org, pending implementation feedback and adoption from applications and websites.
Of a Person, and less typically of an Organization, to indicate a known language. We do not distinguish skill levels or reading/writing/speaking/signing here. Use language codes from the IETF BCP 47 standard.
Values expected to be one of these types
Language
Text
Used on these types
Organization
Person

Acknowledgements

This term and its definition is based upon the work of The Trust Project.


Source

https://github.com/schemaorg/schemaorg/issues/1688