Assertion: earthworm | /r/HasProperty | oligochaeta
Facets:
Source sentences:
text: …sedentary, or tube-dwelling, forms; the earthworms (Oligochaeta); and the leeches (Hirudinea).
text: Earthworms are oligochaetes that support terrestrial food chains both as prey and in some regions are important in aeration and enriching of soil.