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

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

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