Predicate: crumble
Roleset id: crumble.01 , cause to be in little pieces, vncls: 45.4 21.2, framnet:
crumble.01: It's possible this verb will take higher args (EXT, start point, end
point) but I rather doubt it.
Roles:
        Arg0: causer of crumbling (vnrole: 45.4-Agent, 21.2-Agent)
        Arg1: thing crumbling (vnrole: 45.4-Patient, 21.2-Patient)
Example: ergative
        person: ns,  tense: past,  aspect: ns,  voice: active,  form: full
        The market crumbled.
        Arg1: The market
        Rel: crumbled
Example: agentive
        person: ns,  tense: past,  aspect: ns,  voice: active,  form: full
        John crumbled the cookie.
        Arg0: John
        Rel: crumbled
        Arg1: the cookie