Assertion: percussion instrument | /r/HasProperty | struck
Facets:
Source sentences:
text: Percussion instruments make a sound when they are struck, shaken, scraped, plucked, or rubbed.
text: A percussion instrument is struck, so any instrument that is NOT struck is NOT a percussion instrument, for example,
text: Percussion instruments are struck or shaken to produce vibrations.
text: They make sounds when they are struck, scraped, or rattled with hands or special sticks.
text: Percussion instruments make their sound when they are struck.