Assertion: cow's milk | /r/HasProperty | extracted by flexible rubber sheaths
Facets:
value: from the cow's udder
type: TRANSITIVE-OBJECT
Source sentences:
text: Milk is extracted from the cow's udder by flexible rubber sheaths known as liners or inflations that are surrounded by a rigid air chamber.
text: Milk is extracted from the cow's udder by flexible rubber sheaths known as liners or inflations that are surrounded by a rigid air chamber.