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

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

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