Predicate: flow
Roleset id: flow.01 , move like water, vncls: 47.2
Roles:
        Arg1: substance (ie, water
        Arg2: endpoint
        Arg3: startpoint
Example: autogen1
        the flow of foreign capital to the U.S.
        Rel : flow
        Arg1 : of foreign capital
        Arg2 : to the U.S.
Example: autogen2
        cash flow from profits
        Arg1 : cash
        Rel : flow
        Arg3 : from profits