Assertion: legume's root | /r/CapableOf | form symbiotic association
Facets:
value: as a legume
type: MANNER
value: with soil bacteria
type: OTHER
Source sentences:
text: As a legume, its roots form a symbiotic association with soil bacteria known as rhizobia, which transform atmospheric N 2 into a plant-usable form (a process called nitrogen fixing), therefore, this plant is also used to improve soil quality through the decomposition of nitrogen rich plant material.