Assertion: lute's string | /r/MadeOf | synthetic substitute
Facets:
Source sentences:
text: Strings were historically made of animal gut, usually from the small intestine of sheep (sometimes in combination with metal) and are still made of gut or a synthetic substitute, with metal windings on the lower-pitched strings.
text: Strings were historically made of gut (or extremely rarely of metal), and are still made of gut or a synthetic substitute, with metal windings on the lower-pitched strings as on a classical guitar.