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

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

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