About: oklahoma tornado

Premodifier: oklahoma
Head noun: tornado

Same concepts
http://dbpedia.org/resource/Oklahoma_tornado

Broader concepts

label	provenance	confidence
major disaster	isap:48944186	0.648639
disaster	isap:48944120	0.610056
tragedy	isap:428289904	0.520474

Narrower concepts

label	provenance	confidence