Predicate: darken
darken: Frames file for 'darken' based on sentences in brown.
Roleset id: darken.01 , (cause to) become dark, vncls: 45.4, framnet: -
darken.01: Verbnet entry other_cos-45.4, big surprise.
Roles:
        Arg0: causer of darkening (vnrole: 45.4-agent)
        Arg1: thing becoming dark (vnrole: 45.4-patient)
Example: unaccusative
        person: ns,  tense: past,  aspect: ns,  voice: active,  form: full
        He darkened under his heavy burn.
        Arg1: He
        Rel: darkened
        Argm-loc: under his heavy burn
Example: transitive
        person: ns,  tense: past,  aspect: ns,  voice: active,  form: full
        For a moment, anger darkened the hallway about her, and when she
        found her voice, anger thickened it.
        Argm-tmp: For a moment
        Arg0: anger
        Rel: darkened
        Arg1: the hallway about her
Example: pretentious literary usage
        person: ns,  tense: ns,  aspect: progressive,  voice: active,  form: participle
        The darkening world scene, at the time of the Munich Pact,
        continued to trouble his mind even in his remote Virginia
        studio.
        Rel: darkening
        Arg1: [world][scene]