Assertion: silverfish's wing | /r/HasProperty | two pairs
Facets:
value: often
type: TEMPORAL
Source sentences:
text: All insects have six legs (three pairs of jointed legs) and usually four wings (two pairs).
text: Bugs also have a stylet, a straw-like mouthpiece used to reach deep into places to get at their food, and bugs have wings, often 2 pairs.
text: All insects have six legs (three pairs of jointed legs) and usually four wings (two pairs).