Assertion: butter knife's edge | /r/HasProperty | serrated
Facets:
value: sometimes
type: DEGREE
Source sentences:
text: the profile – whether the edge is straight or serrated, and straight, curved or recurved
text: The edge itself may be generally smooth (a "straight" or "clean" edge), or may be serrated or scalloped (have "teeth") in some way.
text: Sometimes the edge of the blade is serrated.