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

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

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