A tag/value pair that does not have a corresponding model attribute. Property represent any statement about a resource (e.g. CodeSystem, Entity, etc.) that does not have a corresponding attribute in the CTS2 model. As an example, the NCI Thesaurus uses a tag named BioCarta_ID (C43677) to associate appropriate thesaurus entities with Bio Carta pathway references. This would be represented by a property, whose predicate is the URI for C436777 and the value is the actual id.

a link to the original statement from which this Property is derived. Will only be present in CTS2 implementations that support the Statement profile.

the name and URI of the property predicate

the target(s) of the property. Note that this can only represent the literal format of the property. The details about the original property will be found in the correspondingStatement if the CTS2 implementation supports the Statement profile.

an assertion whose subject is the assertion in the property instead of the property subject