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

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

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