*SUPPORT*
IN: dax kiki kiki fep zup wif dax OUT: GREEN GREEN PURPLE RED PURPLE
IN: dax gazzer lug wif zup OUT: RED GREEN YELLOW GREEN
IN: lug OUT: YELLOW
IN: kiki fep kiki wif kiki OUT: PURPLE PURPLE PURPLE
IN: dax fep kiki wif lug gazzer kiki OUT: YELLOW PURPLE GREEN PURPLE YELLOW PURPLE GREEN
IN: kiki lug zup wif lug OUT: YELLOW PURPLE YELLOW RED
IN: lug fep dax wif zup OUT: RED GREEN YELLOW
IN: dax OUT: GREEN
IN: kiki gazzer kiki OUT: PURPLE PURPLE PURPLE
IN: zup OUT: RED
IN: lug fep zup OUT: RED YELLOW
IN: zup dax wif zup OUT: RED RED GREEN
IN: dax wif dax OUT: GREEN GREEN
IN: kiki OUT: PURPLE

*QUERY*
IN: lug fep dax OUT: GREEN YELLOW
IN: lug zup fep zup OUT: YELLOW RED RED
IN: kiki dax OUT: PURPLE GREEN
IN: zup fep lug OUT: YELLOW RED
IN: zup fep dax OUT: GREEN RED
IN: kiki fep kiki OUT: PURPLE PURPLE
IN: dax wif dax gazzer kiki wif lug OUT: YELLOW GREEN GREEN PURPLE GREEN GREEN
IN: dax fep dax OUT: GREEN GREEN
IN: zup zup fep kiki OUT: RED PURPLE RED
IN: lug fep kiki wif dax OUT: GREEN PURPLE YELLOW

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