About: sleep stage

Premodifier: sleep
Head noun: stage

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

Broader concepts

label	provenance	confidence

Narrower concepts

label	provenance	confidence
non-rem sleep	isap:369028974	0.703955
rem sleep	isap:369028982	0.565280
rem	isap:467560183	0.537877