Assertion: wind instrument | /r/HasProperty | two oboes
Facets:
value: usually
type: DEGREE
Source sentences:
text: (Most 18th-century orchestras included at least four winds, usually two oboes and two horns; by the 1770s, Mozart was writing for double flutes, oboes, and bassoons, a brass section of pairs of horns and trumpets, plus timpani and four-part strings.)