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

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

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