Assertion: piano's pedal | /r/HasProperty | the one
Facets:
value: usually
type: DEGREE
Source sentences:
text: Of all of the typical pedals on a piano, the sostenuto (middle pedal) is the one that tends to cause the most confusion.
text: The sustain pedal on a regular piano is usually the one to the rightmost side of the set of the (two or one) other pedal(s).