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

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

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