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

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

*GRAMMAR*
zup -> YELLOW 
 fep -> RED 
 lug -> BLUE 
 dax -> PINK 
 x1 tufa -> [x1] [x1] [x1] [x1] 
 x1 gazzer x2 -> [x2] [x1] 
 x1 wif x2 -> [x1] [x2] 
 u1 x1 -> [u1] [x1] 
 