Assertion: ammonia's nitrogen | /r/HasProperty | required by plant
Facets:
value: for the formation of amino acids
type: PURPOSE
Source sentences:
text: Nitrogen is an essential nutrient that is required by all plants and animals for the formation of amino acids.
text: It is an important source of nitrogen needed by plants and animals.
text: Nitrogen is an essential nutrient that is required by all plants and animals for the formation of amino acids.