Assertion: female dog | /r/CapableOf | go into heat
Facets:
Source sentences:
text: Female dogs who aren’t spayed go into heat and the amount of time a female dog bleeds and when she’s fertile varies greatly from a human menstrual cycle.
text: After a female dog "goes into heat" and experiences a fertile period, even if she has not actually mated, she may experience pregnancy symptoms like vomiting, fluid retention, enlargement of the mammaries, and even milk production.