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

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

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