Assertion: prostate cancer | /r/HasProperty | a type of cancer
Facets:
Source sentences:
text: Prostate cancer is a type of cancer that develops in the cells of the prostate gland.
text: Prostate cancer is a form of cancer which begins in the prostate gland.
text: Prostate cancer is a type of cancer occurring within the prostate of men.
text: Prostate cancer is a type of cancer which begins in the prostate gland of men.