Assertion: seaweed's nutrient | /r/HasProperty | nitrogen
Facets:
value: mainly
type: DEGREE
Source sentences:
text: The study authors call it the great Atlantic Sargassum belt, and suspect it’s likely the result of more nutrients, mainly nitrogen and phosphorus, running off the West Africa coast into the ocean in the winter.
text: The three main nutrients that algae need are nitrogen, phosphorus and potassium.