Premodifier: pumice
Head noun: stone

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

Broader concepts

labelprovenanceconfidence
deviceisap:1552141240.587828
toolisap:1972852920.582866
abrasiveisap:2977755840.555704
materialisap:2979618250.478148
pedicureisap:2984932830.407828
goodyisap:3719969540.395826

Narrower concepts

labelprovenanceconfidence