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

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

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