Assertion: firefly's pair | /r/HasProperty | described
Facets:
value: as being "in cop
type: OTHER
Source sentences:
text: The female then curls her abdomen downwards and forwards under her body to pick up the sperm from the male's secondary genitalia, while the male uses his "tail" claspers to grip the female behind the head: this distinctive posture is called the "heart" or "wheel"; the pair may also be described as being "in cop".