Assertion: hydrogen sulfide's odor | /r/CreatedBy | a number of factors
Facets:
Source sentences:
text: Since the odor may be caused by a number of factors, it is critical that the questionnaire be completed and it is highly recommended that both the basic water quality test with bacteria and a nuisance bacteria kit.
text: Since the odor may be caused by a number of factors, it is critical that the questionnaire be completed and it is highly recommended that both the Option 1 and Option 3 water testing packages are conducted..