Assertion: commutator | /r/UsedFor | refer to the device
Facets:
value: in collection
type: LOCATION
Source sentences:
text: Parks Stephenson and his naval engineering buddies note that a COMMUTATOR refers to the device in Collection, Holding & Transfer System holding tanks that smashes the clumps in collected human waste to a more liquid form, so that it won't clog the overboard discharge pipes.