<https://w3id.org/zericatalog/date/1980ca-1987> <http://www.w3.org/2000/01/rdf-schema#label> "1980-1987" .
<https://w3id.org/zericatalog/date/1980ca-1987> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.cidoc-crm.org/cidoc-crm/E52_Time-Span> .
<https://w3id.org/zericatalog/date/1980ca-1987> <http://www.ontologydesignpatterns.org/cp/owl/timeinterval.owl#hasIntervalStartDate> "1980-01-01T00:00:00Z" .
<https://w3id.org/zericatalog/date/1980ca-1987> <http://www.ontologydesignpatterns.org/cp/owl/timeinterval.owl#hasIntervalEndDate> "1987-01-01T00:00:00Z" .
<https://w3id.org/zericatalog/date/1980ca-1987> <http://www.cidoc-crm.org/cidoc-crm/P86_falls_within> <https://w3id.org/zericatalog/date/xx> .
<https://w3id.org/zericatalog/date/1980ca-1987> <http://www.cidoc-crm.org/cidoc-crm/P79_beginning_is_qualified_by> "ca." .