Assertion: worm | /r/HasProperty | beneficial
Facets:
value: to the waters
type: TRANSITIVE-OBJECT
Source sentences:
text: The worms are beneficial to the waters because they keep the soil moving as the eat, which is important to keep ponds and lakes healthy.
text: They are beneficial because they consume large amounts of mud and filter out organic refuse.
text: Before endeavoring to remove bristle worms from your marine aquarium, determine whether the worms in question are harmful or beneficial.