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

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

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