Assertion: trombone | /r/HasAspect | valve
Facets:
Source sentences:
text: Some trombones have a valve which increases the range of available notes.
text: Some trombones have a valve which increases the range of available notes.
text: Some trombones have a valve which increases the range of available notes.
text: Some trombones have a valve which increases the range of available notes.
text: Some trombones have valves instead of a slide (see valve trombone).
text: The trombone having a slide instead of valves or strings or holes for playing had difficult positioning themselves, and tended to sit in the back of the trailer, gaining the name "Tailgate Trombone".