Premodifier: hearing
Head noun: protection

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

Narrower concepts

labelprovenanceconfidence
ear plugisap:1896391730.586418
earisap:2392828390.373274
muffisap:1887808950.338022
earplugisap:2447195850.320270
areaisap:1900823890.230751