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

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

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