Predicate: depressant
Roleset id: depressant.01 , bring down (stock prices, vncls:
Roles:
        Arg0: causer of depression (agent or instrument
        Arg1: stock
        Arg2: ext
        Arg3: start point
        Arg4: end point
Example: autogen1
        a price depressant
        Arg1 : price
        Arg0 : depressant
        Rel : depressant
Example: autogen2
        the market depressant
        Arg1 : market
        Arg0 : depressant
        Rel : depressant