Assertion: sponge's feature | /r/HasProperty | agelasida
Facets:
Source sentences:
text: There are also several less firmly established orders that are based upon unique combinations of non-exclusive skeletal or spicule characters (orders Hadromerida, Halichondrida), or smaller groups with unique skeletal or spicule features (Agelasida, Chondrosida+Halisarcida).