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

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

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