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

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

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