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

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

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