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

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

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