code category weight rotate banner t1 tech 1 0 10% tech banner t2 tech 2 0 20% tech banner t3 tech 7 0 70% tech banner tech tech 0 0 tech banner, categorized, non-rotated tech tech 0 1 Tech rotated 1{or}Tech rotated 2 a1 art 1 0 10% art banner a2 art 2 0 20% art banner a3 art 7 0 70% art banner default 0 1 Default 1{or}Default 2{or}Default 3