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

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

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