Predicate: refinery

Roleset id: refinery.01 , to purify, vncls:

Roles:

        Arg0: purifier, agent
        Arg1: entity refined
        Arg2: impurities

Example: autogen1

        Oil company refineries

        Arg1 : Oil
        Arg0 : refineries
        Rel : refineries

Example: autogen2

        its refinery northeast of San Francisco

        Arg0 : refinery
        Rel : refinery
        ArgM-LOC : northeast of San Francisco