Predicate: offload
Frames file for 'offload' based on sentences in ectb2.
Verbnet class spray-9.7-2; no other framed members. Comparison to
'unload'.
Roleset id: offload.01 , cause to be unburdened, vncls: 9.7-2
Roles:
        Arg0: unloader, agent
        Arg1: beast of burden
        Arg2: cargo
        Arg3: instrument
Example: all args
        He-1 managed *-1 to offload a superb pass to his brother.
        Arg0 : *-1
        Rel : offload
        Arg1 : to his brother
        Arg2 : a superb pass
Example: only cargo
        [More than ten tuna ships]-1 come in every day
        *-1 to offload their catch and to resupply.
        Arg0 : *-1
        Rel : load
        Arg2 : their catch