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

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

*GRAMMAR*
zup -> YELLOW 
 gazzer -> GREEN 
 lug -> RED 
 kiki -> BLUE 
 u1 dax u2 -> [u1] [u2] 
 x1 tufa x2 -> [x1] [x1] [x2] 
 x1 fep -> [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 