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

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

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