Predicate: smoothen
Roleset id: smoothen.01 , Make or become smooth, vncls: 45.4, framnet: -
smoothen.01: Roleset by Katie based on internet search, parallel expansion of verbnet, propbank, and sense groupings. VN class other_cos-45.4.
Roles:
        Arg0: Thing causing the smoothening (vnrole: 45.4-agent)
        Arg1: Entity smoothened (vnrole: 45.4-patient)
Example: cause to be smooth
        person: ns,  tense: ns,  aspect: ns,  voice: ns,  form: ns
        Collagen injections smoothen wrinkle lines.
        Arg0: Collagen injections
        Rel: smoothen
        Arg1: wrinkle lines.
Example: Become smooth
        person: ns,  tense: ns,  aspect: ns,  voice: ns,  form: ns
        Without it, a rough surface morphology can't smoothen.
        Argm-adv: without it
        Arg1: a rough surface morphology
        Argm-mod: ca
        Argm-neg: n't
        Rel: smoothen.