Assertion: cello's sound | /r/CreatedBy | viola
Facets:
Source sentences:
text: The characteristic long, sustained, and singing sound produced by the violin, viola, violoncello, and double bass is due to the drawing of the bow against their strings.
text: The characteristic long, sustained, and singing sound produced by the violin, viola, violoncello, and double bass is due to the drawing of the bow against their strings.