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

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

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