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

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

*GRAMMAR*
kiki -> RED 
 gazzer -> GREEN 
 tufa -> BLUE 
 fep -> PURPLE 
 u1 lug -> [u1] [u1] 
 x1 zup x2 -> [x2] [x1] 
 u1 dax u2 -> [u1] [u2] 
 u1 x1 -> [u1] [x1] 
 