Assertion: lizard's tongue | /r/ObjectUse | used as tool
Facets:
value: for cleaning the spectacle
type: PURPOSE
value: increasingly
type: DEGREE
Source sentences:
text: Use of the vomerolfaction system did not develop within Gekkota to the extent that it did within Autarchoglossa; however, the tongue was increasingly used as a tool for cleaning the spectacle, a transparent scale covering the eye.