<http://caligraph.org/ontology/Timeline_of_the_September_11_attacks>	<http://www.w3.org/2000/01/rdf-schema#label>	"Timeline of the September 11 attacks" .
<http://caligraph.org/ontology/Timeline_of_the_September_11_attacks>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:Timelines_of_the_September_11_attacks> .
<http://caligraph.org/ontology/Timeline_of_the_September_11_attacks>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/United_States_history_timeline> .
<http://caligraph.org/ontology/Timeline_of_the_September_11_attacks>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2002/07/owl#Class> .