Assertion: starfish | /r/HasProperty | pisaster
Facets:
Source sentences:
text: The starfish Pisaster ochraceus is a keystone species in the rocky marine intertidal communities off the northwest coast of North America.
text: The starfish Pisaster ochraceus is a keystone species in the rocky marine intertidal communities off the northwest coast of North America.
text: In some forest communities in tropical America, figs and a few other plants act as keystone species but in a very different manner from the starfish Pisaster.