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

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

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