Assertion: octopus's organ | /r/HasProperty | the radula
Facets:
Source sentences:
text: The latter organ has a pair of sharp, horny beaks and a filelike organ, the radula, for drilling shells and rasping away flesh.
text: Their arms are joined at their bases by a web of tissue that’s known as a skirt; their mouth is found in the center of the skirt and contains a pair of sharp beaks and a file-like organ known as a radula.