Assertion: colon's cancer | /r/HasProperty | prevented
Facets:
value: by removing colorectal polyps
type: MANNER
value: by using natural substances
type: MANNER
Source sentences:
text: Colorectal cancer is prevented by removing precancerous colon polyps.
text: Colorectal cancer can be prevented by removing colorectal polyps before they grow and change into cancers, or by using natural substances or man-made chemicals to prevent the colorectal polyps from changing into cancer.