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

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

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