Predicate: drift
Roleset id: drift.01 , attribute, vncls:
Roles:
Arg1: theme
Arg2: value
Arg3: secondary-theme
Example: autogen1
the downward drift
Arg2 : downward
Rel : drift
Example: autogen2
the court 's conservative drift
Arg1 : the court 's
Arg2 : conservative
Rel : drift