Assertion: echinoderm | /r/HasAspect | spinyskin
Facets:
Source sentences:
text: Many echinoderms actually have "spiny" skin, but others do not.
text: But not all echinoderms have spiny skin.
text: In fact, only a few echinoderms have spiny skins, but they are the most familiar: the echinoids, or sea urchins, and to some extent the starfish.
text: Many echinoderms actually do have "spiny" skin, but others do not.
text: Many, but not all, echinoderms have spiny skin.