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

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

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