Assertion: bacteria's presence | /r/HasProperty | correlated with contamination
Facets:
value: closely
type: DEGREE
value: by other faecal organisms
type: OTHER
Source sentences:
text: Coliform bacteria selected as indicators of faecal contamination must not persist in the environment for long periods of time following efflux from the intestine, and their presence must be closely correlated with contamination by other faecal organisms.