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

*QUERY*
IN: dax kiki zup OUT: BLUE PURPLE
IN: gazzer kiki dax kiki zup OUT: BLUE PURPLE GREEN
IN: gazzer fep gazzer fep gazzer OUT: GREEN GREEN GREEN
IN: zup tufa dax OUT: BLUE RED PURPLE
IN: gazzer fep tufa kiki dax kiki zup OUT: BLUE PURPLE GREEN RED
IN: zup OUT: BLUE
IN: dax tufa kiki gazzer OUT: GREEN PURPLE RED
IN: dax OUT: PURPLE
IN: gazzer lug dax tufa fep gazzer kiki zup OUT: BLUE PURPLE RED GREEN GREEN GREEN
IN: gazzer gazzer tufa fep zup OUT: GREEN GREEN RED BLUE

*GRAMMAR*
tufa -> RED 
 zup -> BLUE 
 dax -> PURPLE 
 gazzer -> GREEN 
 x1 fep u1 -> [x1] [u1] 
 x1 kiki u1 -> [u1] [x1] 
 x1 lug x2 -> [x2] [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 