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

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

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