Predicate: affordability
Roleset id: affordability.01 , nom/attribute, vncls:
Roles:
        Arg0: haver of financial means, agent
        Arg1: costly thing, theme
        Arg2: value
Example: autogen1
        reduced affordability of homes for first-time buyers
        Arg2 : reduced
        Rel : affordability
        Arg1 : of homes
        Arg0 : for first-time buyers
Example: autogen2
        housing affordability
        Arg1 : housing
        Rel : affordability