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

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

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