*SUPPORT*
IN: gazzer fep tufa OUT: PINK BLUE
IN: gazzer fep zup kiki gazzer OUT: PINK PINK PURPLE PINK PURPLE
IN: lug fep gazzer kiki tufa fep lug OUT: BLUE YELLOW YELLOW PINK YELLOW PINK
IN: zup dax lug OUT: YELLOW PURPLE
IN: gazzer OUT: PINK
IN: lug fep tufa OUT: YELLOW BLUE
IN: lug zup dax gazzer OUT: YELLOW PINK PURPLE
IN: tufa fep gazzer OUT: BLUE PINK
IN: gazzer dax lug OUT: YELLOW PINK
IN: lug dax zup OUT: PURPLE YELLOW
IN: zup OUT: PURPLE
IN: tufa OUT: BLUE
IN: gazzer tufa OUT: PINK BLUE
IN: zup lug fep lug OUT: PURPLE YELLOW YELLOW

*QUERY*
IN: lug OUT: YELLOW
IN: gazzer dax tufa OUT: BLUE PINK
IN: zup dax zup kiki gazzer fep tufa OUT: PINK BLUE PURPLE PURPLE PURPLE PURPLE
IN: gazzer fep lug OUT: PINK YELLOW
IN: lug dax gazzer OUT: PINK YELLOW
IN: tufa gazzer dax lug OUT: BLUE YELLOW PINK
IN: lug fep lug kiki tufa dax tufa OUT: BLUE BLUE YELLOW YELLOW YELLOW YELLOW
IN: zup fep zup OUT: PURPLE PURPLE
IN: gazzer tufa dax lug OUT: PINK YELLOW BLUE
IN: gazzer fep zup OUT: PINK PURPLE

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