Assertion: penis | /r/CapableOf | undergo erection
Facets:
value: during erotic stimulation
type: TEMPORAL
value: for sexual intercourse
type: PURPOSE
Source sentences:
text: For sexual intercourse, the penis undergoes erection during erotic stimulation and becomes engorged with blood.
text: During erotic stimulation, the penis undergoes erection, becoming engorged with blood.