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

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

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