Assertion: sponge's form | /r/HasProperty | different
Facets:
Source sentences:
text: So, adult boring sponges actually occur in two different forms; the excavation stage, which is characterized by an embedded colony in a partially dissolved shell, and the gamma stage, which is the form taken by the sponge once the shell is gone.
text: Red-beard sponges are a species of sponge found in Rhode Island that exists in two different forms.