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

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

*GRAMMAR*
lug -> PURPLE 
 kiki -> BLUE 
 dax -> YELLOW 
 zup -> GREEN 
 x1 blicket x2 -> [x1] [x2] 
 u1 gazzer -> [u1] [u1] 
 u1 tufa u2 -> [u2] [u1] 
 u1 x1 -> [u1] [x1] 
 