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

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

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