more clarity

Author: gregsdennis

jsonschema-core.md

@@ -896,9 +896,9 @@ by other parties.
 
 To differentiate between schemas in a vast ecosystem, schemas are identified by
 [absolute IRIs](#rfc3987) (without fragments) and can embed references to other
-schemas by specifying their respective IRIs. When comparing IRIs,
-implementations SHOULD first follow the IRI normalization procedures defined in
-[RFC 3987](#rfc3987), section 5.3.
+schemas by specifying their respective IRIs. When comparing IRIs for the
+purposes of resource identification, implementations SHOULD first follow the IRI
+normalization procedures defined in [RFC 3987](#rfc3987), section 5.3.
 
 Several keywords can accept a relative [IRI reference](#rfc3987), or a value
 used to construct a relative IRI reference. For these keywords, it is necessary