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

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

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