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

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

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