<http://caligraph.org/resource/River_Valley_High_School_attack>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/2021_in_Singapore> .
<http://caligraph.org/resource/River_Valley_High_School_attack>	<http://www.w3.org/2004/02/skos/core#altLabel>	"scene of an alleged killing" .
<http://caligraph.org/resource/River_Valley_High_School_attack>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://caligraph.org/ontology/High_school_killing> .
<http://caligraph.org/resource/River_Valley_High_School_attack>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/2002/07/owl#NamedIndividual> .
<http://caligraph.org/resource/River_Valley_High_School_attack>	<http://www.w3.org/2004/02/skos/core#altLabel>	"attack" .
<http://caligraph.org/resource/River_Valley_High_School_attack>	<http://www.w3.org/2000/01/rdf-schema#label>	"River Valley High School attack" .
<http://caligraph.org/resource/River_Valley_High_School_attack>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://en.wikipedia.org/wiki/Category:High_school_killings> .
<http://caligraph.org/resource/River_Valley_High_School_attack>	<http://www.w3.org/2002/07/owl#sameAs>	<http://dbpedia.org/resource/River_Valley_High_School_attack> .
<http://caligraph.org/resource/River_Valley_High_School_attack>	<http://www.w3.org/2004/02/skos/core#prefLabel>	"River Valley High School attack" .