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

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

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