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

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

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