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

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

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