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

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

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