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

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

*GRAMMAR*
kiki -> BLUE 
 dax -> RED 
 fep -> YELLOW 
 zup -> PINK 
 u1 blicket u2 -> [u1] [u2] 
 x1 tufa x2 -> [x2] [x2] [x1] [x1] 
 u1 lug u2 -> [u1] [u1] [u2] [u2] 
 u1 x1 -> [u1] [x1] 
 