IAO Textual Entity

A textual entity (IAO_0000300) must always be about something via iao:is_about.

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About This Example

This example uses the Information Artifact Ontology (IAO) to model a publication that references a dataset. The SHACL constraint ensures every textual entity has at least one is_about relation.

Try It

Click Edit & Validate and try removing the iao:is_about triple to trigger a constraint violation.