Assertion: butterfly's wing | /r/CapableOf | owe their beauty
Facets:
value: to structural color
type: CAUSE
value: to iridescence
type: TRANSITIVE-OBJECT
Source sentences:
text: Whether they serve as camouflage or communication, the brilliant, complex wings of painted ladies, red-spotted purples and the thousands of other butterfly species owe their beauty to iridescence and structural color.