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

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

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