Assertion: semen's sperm | /r/CapableOf | undergo a period of capacitation
Facets:
value: after reaching the fallopian tubes
type: TEMPORAL
value: before penetration of the ovum
type: TEMPORAL
Source sentences:
text: Sperm have an olfactory guidance mechanism, and after reaching the Fallopian tubes, must undergo a period of capacitation before penetration of the ovum.