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

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

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