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

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

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