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

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

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