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

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

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