Assertion: diatom | /r/CapableOf | grow in unpolluted ponds
Facets:
value: usually
type: TEMPORAL
value: better
type: MANNER
Source sentences:
text: Diatoms usually grow better in unpolluted ponds and streams and this preliminary investigation suggests that they could be useful for biological monitoring of pollution levels and ecosystem integrity in the short and potentially in the long-term once seasonal studies confirm the preliminary results.