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

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

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