Assertion: spectacle's lense | /r/HasProperty | separated
Facets:
value: by pulling the lenses
type: MANNER
Source sentences:
text: The "astig"—so called for its ability to manage astigmatism—or "bar-spring" pince-nez consists of a sliding bar and spring connecting the lenses which can be separated by gently pulling the lenses away from each other, then placed on the bridge of the nose and released.