Assertion: sounding board | /r/HasProperty | 0.25-0.375
Facets:
value: in 0.635
type: LOCATION
Source sentences:
text: The soundboard is made of spruce that is 0.25-0.375 in (0.635-0.95 cm) thick; it acts as a natural resonator, is strong for its weight, and can be vibrated by the strings because of its lightness.