Assertion: circumcision's effect | /r/HasProperty | protective
Facets:
Source sentences:
text: Circumcision has a protective effect against the risks of penile cancer in men, and cervical cancer in the female sexual partners of heterosexual men.
text: The American Cancer Society notes that penile cancer is very rare, and says that after eliminating risk factors like smegma buildup and phimosis (a condition in which the foreskin tightens and becomes unretractable), those studies do not show circumcision has a protective effect.