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

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

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