Assertion: colonoscopy | /r/CapableOf | reduce cancer rates
Facets:
value: by detecting some colon polyps
type: MANNER
Source sentences:
text: Colonoscopy reduces cancer rates by detecting some colon polyps and cancers on the left side of the colon early enough that they may be treated, and a smaller number on the right side; many of these left-sided growths would have been detected by a sigmoidoscopy procedure.