Predicate: rack
Roleset id: rack.01 , grasp, bear, vncls: 15.1
Roles:
        Arg0: holder
        Arg1: thing held
        Arg2: beneficiary
        Arg3: secondary attribute of arg1
Example: autogen1
        magazine racks
        Arg1 : magazine
        Arg0 : racks
        Rel : racks
Example: autogen2
        Metal racks on the plant floor
        Arg3 : Metal
        Arg0 : racks
        Rel : racks
        ArgM-LOC : on the plant floor