Assertion: upright piano | /r/CapableOf | involve some compromise
Facets:
value: in both tone
type: OTHER
value: in key action
type: TEMPORAL
value: necessarily
type: MANNER
Source sentences:
text: The upright piano, which necessarily involves some compromise in both tone and key action compared to a grand piano of equivalent quality, is nevertheless much more widely used, because it occupies less space (allowing it to fit comfortably in a room where a grand piano would be too large) and is significantly less expensive.