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

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

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