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

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

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