*SUPPORT*
IN: zup wif tufa wif dax OUT: BLUE RED PINK PINK RED PINK PINK
IN: dax OUT: BLUE
IN: kiki gazzer kiki OUT: GREEN GREEN GREEN GREEN
IN: tufa gazzer dax OUT: BLUE BLUE RED RED
IN: zup gazzer kiki OUT: GREEN GREEN PINK PINK
IN: zup gazzer tufa OUT: RED RED PINK PINK
IN: dax tufa OUT: BLUE RED
IN: tufa zup OUT: RED PINK
IN: tufa gazzer kiki OUT: GREEN GREEN RED RED
IN: tufa gazzer tufa OUT: RED RED RED RED
IN: tufa kiki kiki gazzer zup OUT: RED GREEN PINK PINK GREEN GREEN
IN: tufa kiki lug dax OUT: BLUE RED GREEN
IN: tufa OUT: RED
IN: zup gazzer dax lug tufa OUT: RED BLUE BLUE PINK PINK

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

*GRAMMAR*
zup -> PINK 
 tufa -> RED 
 kiki -> GREEN 
 dax -> BLUE 
 x1 wif u1 -> [u1] [x1] [x1] 
 x1 lug x2 -> [x2] [x1] 
 u1 gazzer u2 -> [u2] [u2] [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 