Assertion: sea cucumber | /r/HasProperty | class holothuroidea
Facets:
Source sentences:
text: In contrast to the sea stars, their less attractive and well-known cousins, the sea cucumbers (Class Holothuroidea) are largely unknown in popular culture.
text: Sea cucumber, (class Holothuroidea), any of 1,200 species of marine invertebrates that constitute a class within the phylum Echinodermata.