Assertion: harmonica's comb | /r/CapableOf | shrink over time
Facets:
Source sentences:
text: An even more serious problem with wooden combs, especially in chromatic harmonicas (with their thin dividers between chambers), is that, as the combs expand and shrink over time, cracks can form in the combs, because the comb is held immobile by nails, resulting in disabling leakage.
text: An even more serious problem with wood combs, especially in chromatic harmonicas (with their thin dividers between chambers) is that the combs shrink over time.