Assertion: semen | /r/MadeOf | prostaglandin
Facets:
Source sentences:
text: Semen contains citric acid, free amino acids, fructose, enzymes, phosphorylcholine, prostaglandin, potassium, and zinc.
text: The fact that semen contains prostaglandins has also led to the claim that semen’s cervical softening capacity can make your period come faster.