*SUPPORT*
IN: dax kiki fep OUT: BLUE YELLOW
IN: gazzer dax OUT: GREEN BLUE
IN: dax dax kiki gazzer OUT: BLUE BLUE GREEN
IN: dax zup kiki gazzer OUT: BLUE RED GREEN
IN: fep tufa zup OUT: RED RED YELLOW
IN: zup tufa dax OUT: BLUE BLUE RED
IN: zup kiki zup OUT: RED RED
IN: fep dax tufa fep OUT: YELLOW YELLOW YELLOW BLUE
IN: gazzer kiki zup OUT: GREEN RED
IN: gazzer kiki gazzer OUT: GREEN GREEN
IN: fep tufa fep OUT: YELLOW YELLOW YELLOW
IN: fep dax OUT: YELLOW BLUE
IN: zup fep OUT: RED YELLOW
IN: fep tufa dax tufa gazzer OUT: GREEN GREEN BLUE BLUE YELLOW

*QUERY*
IN: gazzer blicket dax OUT: BLUE GREEN BLUE BLUE
IN: dax OUT: BLUE
IN: dax gazzer OUT: BLUE GREEN
IN: gazzer zup kiki dax OUT: GREEN RED BLUE
IN: fep kiki fep blicket gazzer kiki dax OUT: GREEN BLUE YELLOW YELLOW GREEN BLUE GREEN BLUE
IN: zup blicket fep kiki dax OUT: YELLOW BLUE RED YELLOW BLUE YELLOW BLUE
IN: fep OUT: YELLOW
IN: gazzer OUT: GREEN
IN: gazzer tufa zup tufa fep tufa fep OUT: YELLOW YELLOW YELLOW YELLOW RED RED GREEN
IN: fep kiki fep OUT: YELLOW YELLOW

*GRAMMAR*
dax -> BLUE 
 gazzer -> GREEN 
 zup -> RED 
 fep -> YELLOW 
 u1 kiki u2 -> [u1] [u2] 
 x1 blicket x2 -> [x2] [x1] [x2] [x2] 
 x1 tufa u1 -> [u1] [u1] [x1] 
 u1 x1 -> [u1] [x1] 
 