Assertion: urea | /r/HasProperty | a nitrogen source
Facets:
value: primarily
type: DEGREE
value: typically
type: DEGREE
Source sentences:
text: Urea has typically been considered as primarily a nitrogen source to photosynthetic organisms such as algae and plants, but urea can also be a supplementary nitrogen source to bacteria.
text: Urea or carbamide—a source of nitrogen—is the major fertilizer material and is produced
text: Urea has typically been considered as primarily a nitrogen source to photosynthetic organisms such as algae and plants, but urea can also be a supplementary nitrogen source to bacteria.