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

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

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