Assertion: earthworm's role | /r/HasProperty | important
Facets:
Source sentences:
text: Earthworms play an important role is enhancing soil fertility.
text: Earthworms play an important role in many ecosystems, breaking down rotting organic matter into its simple components for use by plants.
text: In fact, there is indirect evidence that earthworms may have an important role in the availability of two of the most important and abundant plant nutrients in ADE: P and Ca.
text: Earthworms, among the simplest creatures on the planet, play important roles in improving soil conditions by changing its texture and leaving behind nutrients as they go about their daily business.