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

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

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