*SUPPORT*
IN: wif tufa lug wif OUT: BLUE BLUE BLUE PINK
IN: wif gazzer kiki OUT: BLUE RED BLUE
IN: wif dax OUT: BLUE BLUE BLUE
IN: tufa kiki dax OUT: PINK RED RED RED
IN: wif lug tufa gazzer fep OUT: PINK PINK BLUE PURPLE PINK PINK BLUE
IN: kiki lug kiki gazzer fep OUT: RED RED RED PURPLE RED RED RED
IN: fep dax OUT: PURPLE PURPLE PURPLE
IN: fep OUT: PURPLE
IN: wif lug fep OUT: PURPLE PURPLE BLUE
IN: tufa gazzer tufa OUT: PINK PINK PINK
IN: wif OUT: BLUE
IN: tufa lug tufa gazzer tufa OUT: PINK PINK PINK PINK PINK PINK PINK
IN: kiki dax OUT: RED RED RED
IN: tufa dax OUT: PINK PINK PINK

*QUERY*
IN: tufa dax gazzer kiki OUT: PINK PINK PINK RED PINK PINK PINK
IN: tufa gazzer fep OUT: PINK PURPLE PINK
IN: kiki gazzer fep OUT: RED PURPLE RED
IN: fep tufa dax OUT: PURPLE PINK PINK PINK
IN: wif lug wif gazzer fep OUT: BLUE BLUE BLUE PURPLE BLUE BLUE BLUE
IN: kiki OUT: RED
IN: kiki lug kiki OUT: RED RED RED
IN: tufa dax gazzer fep OUT: PINK PINK PINK PURPLE PINK PINK PINK
IN: tufa lug wif OUT: BLUE BLUE PINK
IN: fep gazzer wif OUT: PURPLE BLUE PURPLE

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