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

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

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