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

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

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