<https://w3id.org/framester/pb/pbdata/exercise.02> <http://www.w3.org/2000/01/rdf-schema#label> "exercise"^^<http://www.w3.org/2001/XMLSchema#string> .
<https://w3id.org/framester/pb/pbdata/exercise.02> <https://w3id.org/framester/pb/pbschema/hasRole> <https://w3id.org/framester/pb/pbdata/exercise.02__0> .
<https://w3id.org/framester/pb/pbdata/exercise.02> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <https://w3id.org/framester/pb/pbschema/RoleSet> .