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

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

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