Assertion: cello's endpin | /r/HasProperty | spike
Facets:
Source sentences:
text: It was only somewhat later that the cello began to be played while being supported by the calves, and even later, by an endpin (spike).
text: It's a four-string instrument that resembles a violin in shape, except it's much larger and held between the musician's legs; its weight is supported by an endpin/spike that touches the floor.