# annotationOf

The value of this property is the [PrimaryMaterial](../defined-terms/primaryresource) to which the current resource adds information.

This property links an [Annotation](../defined-terms/annotation) to the [PrimaryMateria](../defined-terms/primaryresource)l which is annotated. It has a complementary property: [hasAnnotation](hasannotation).

The value of the property is expected to be an instance of the class [PrimaryMaterial](../defined-terms/primaryresource).

The property is used on the type:\
[schema:CreativeWork](https://schema.org/CreativeWork)
