Assertion: sewage's material | /r/HasProperty | saprotrophic bacteria
Facets:
value: largely
type: DEGREE
Source sentences:
text: This material, which in healthy sludge is a brown floc, is largely composed of saprotrophic bacteria but also has an important protozoan flora component mainly composed of amoebae, Spirotrichs, Peritrichs including Vorticellids and a range of other filter-feeding species.