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

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

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