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

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

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