Assertion: acoustic piano | /r/CapableOf | create their sounds
Facets:
value: by means of strings
type: MANNER
value: in air
type: LOCATION
Source sentences:
text: Acoustic pianos, on the other hand, create their sounds in air, by means of strings being struck by hammers and a wooden soundboard that serves to amplify the sound so that it can be easily heard, without the benefit of any electronic components, and therefore without the need for electricity, speakers or headphones.