Assertion: piano's hammer | /r/HasProperty | padded with firm
Facets:
value: typically
type: DEGREE
Source sentences:
text: Pressing one or more keys on the piano's keyboard causes a wooden or plastic hammer (typically padded with firm felt) to strike the strings.
text: Pressing one or more keys on the piano's keyboard causes a wooden or plastic hammer (typically padded with firm felt) to strike the strings.