Assertion: concerto | /r/HasProperty | scored for 3 trombones
Facets:
Source sentences:
text: The concerto is scored for 2 flutes, piccolo, 2 oboes, English horn, 2 clarinets, bass clarinet, 2 bassoons, contrabassoon, 4 horns, 2 trumpets, 3 trombones, timpani, side drum, bass drum, cymbals, triangle, tamtam (gong), celesta, harp, and strings.