Assertion: marine gastropod | /r/HasAspect | siphon
Facets:
Source sentences:
text: Many marine gastropods are burrowers, and have a siphon that extends out from the mantle edge.
text: Marine gastropods that have a siphon are either predators or scavengers.
text: Many marine gastropods are burrowers and have siphons or tubes that extend from the mantle and sometimes the shell.
text: Many marine gastropods are burrowers and have siphons or tubes that extend from the mantle and sometimes the shell.