Assertion: seaweed | /r/ObjectUse | used for filtration purposes
Facets:
value: almost universally
type: DEGREE
value: because of the need
type: CAUSE
Source sentences:
text: Seaweed (macroalgae), as opposed to phytoplankton (microalgae), is used almost universally for filtration purposes because of the need to be able to easily remove (harvest) the algae from the water, which then removes the nutrients.