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

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

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