Predicate: ban
Frames file for 'ban' based on sentences in financial subcorpus. No
verbnet entry. Loose comparison with 'allow'
Roleset id: ban.01 , prohibit, vncls: 67
Roles:
        Arg0: lawgiver, usually
        Arg1: action prohibited
        Arg2: secondary agent
Example: typical usage
        ...to have them pressure the exchange to ban program trading.
        Arg0 : the exchange
        Rel : ban
        Arg1 : program trading