Assertion: filter | /r/HasProperty | a glass or plastic disk
Facets:
value: more commonly,
type: DEGREE
value: of a square or oblong shape
type: OTHER
Source sentences:
text: The filter can be of a square or oblong shape and mounted in a holder accessory, or, more commonly, a glass or plastic disk in a metal or plastic ring frame, which can be screwed into the front of or clipped onto the camera lens.