Assertion: violin's tuner | /r/HasProperty | called fine adjusters
Facets:
Source sentences:
text: All violins have pegs; fine tuners (also called fine adjusters) are optional.
text: Most violins do have a fine tuner on their thin metal E string.
text: All violins have pegs; fine tuners (also called fine adjusters) are optional.
text: A violin always has pegs, but fine tuners (also called fine adjusters) are optional to have only one.
text: Some violins only have fine tuners on the E string, whereas others have fine tuners on all 4 strings.