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

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

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