Assertion: wind instrument's type | /r/HasProperty | open
Facets:
value: at both ends
type: LOCATION
value: of larger diameter at the ends
type: OTHER
Source sentences:
text: Another type of pressure anemometer is the Venturi tube, which is open at both ends and of larger diameter at the ends than at the middle.
text: Certain types of woodwinds, open flutes in particular, use required to blow a stream of air across a sharp edge that then splits the airstream.