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

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

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