Assertion: gastropod's teeth | /r/HasProperty | involved
Facets:
Source sentences:
text: The other 13 teeth on each row do not appear to be involved in feeding.
text: It used to be thought that the hole was drilled by the radula, but it has now been shown that minute teeth at the tip of the salivary papilla are involved, and an enzyme in the toxic saliva is used to dissolve the calcium carbonate of the shell.