Predicate: discovery
Roleset id: discovery.01 , find (out, vncls:
Roles:
        Arg0: finder
        Arg1: thing found, discovery
        Arg2: beneficiary, found for
        Arg3: attribute on arg1
Example: autogen1
        his retinoblastoma discovery
        Arg0 : his
        Arg1 : retinoblastoma
        Rel : discovery
Example: autogen2
        the price discovery system
        Arg1 : price
        Rel : discovery