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

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

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