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

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

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