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

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

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