<> <> <> <> <> SELECT TRIGGER FROM Mouse => SELECT ENABLE FROM Red Down => Coords, Move; Yellow Down => Coords, Move; Blue Down => Coords, Grow; ENDCASE; Red Up => Coords, End; Red Down => SELECT ENABLE FROM Blue Down => Abort; Yellow Down => Abort; ENDCASE => Coords, Move; Yellow Up => Coords, End; Yellow Down => SELECT ENABLE FROM Blue Down => Abort; Red Down => Abort; ENDCASE => Coords, Move; Blue Up => Coords, End; Blue Down => SELECT ENABLE FROM Red Down => Abort; Yellow Down => Abort; ENDCASE => Coords, Grow; ENDCASE.