Assertion: male's penis | /r/CapableOf | become erect
Facets:
value: before entering the female
type: TEMPORAL
value: commonly
type: TEMPORAL
value: during sleep
type: TEMPORAL
Source sentences:
text: The penis may become erect during sleep or be erect on waking up.
text: Unlike human sexual intercourse, where the male penis commonly becomes erect before entering the female, canine copulation involves the male first penetrating the female, after which swelling of the penis to erection occurs.