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

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

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