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

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

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