<http://caligraph.org/ontology/Accident_or_disaster>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2002/07/owl#Class> .
<http://caligraph.org/ontology/Accident_or_disaster>	<http://www.w3.org/2000/01/rdf-schema#subClassOf>	<http://caligraph.org/ontology/Railway_accident_or_incident> .
<http://caligraph.org/ontology/Accident_or_disaster>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/List_of_accidents_and_disasters_by_death_toll> .
<http://caligraph.org/ontology/Accident_or_disaster>	<http://www.w3.org/2000/01/rdf-schema#label>	"Accident or disaster" .