<http://caligraph.org/ontology/Terrorist_incident_in_the_1920s>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:Terrorist_incidents_in_the_1920s> .
<http://caligraph.org/ontology/Terrorist_incident_in_the_1920s>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:Terrorist_incidents_in_the_1920s_by_country> .
<http://caligraph.org/ontology/Terrorist_incident_in_North_America_in_the_1920s>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Terrorist_incident_in_the_1920s> .
<http://caligraph.org/ontology/Terrorist_incident_in_the_1920s>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Terrorist_incident_in_the_20th_century> .
<http://caligraph.org/ontology/Terrorist_incident_in_the_1920s>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2002/07/owl#Class> .
<http://caligraph.org/ontology/Terrorist_incident_in_the_1920s>	<http://www.w3.org/2000/01/rdf-schema#label>	"Terrorist incident in the 1920s" .