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

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

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