Assertion: female beaver | /r/AtLocation | heat
Facets:
value: at a time
type: TEMPORAL
value: for 12 hours
type: TEMPORAL
Source sentences:
text: When the female beaver is in heat, the nipples become enlarged, the vulva swells and the urinary papillae becomes engorged and red in color.
text: Mating season is only two months long and the female beaver is in heat for 12 hours at a time.