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

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

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