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

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

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