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

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

*GRAMMAR*
fep -> BLUE 
 lug -> PINK 
 tufa -> YELLOW 
 wif -> PURPLE 
 u1 gazzer x1 -> [x1] [u1] 
 u1 dax u2 -> [u2] [u1] 
 x1 zup x2 -> [x1] [x2] [x1] 
 u1 x1 -> [u1] [x1] 
 