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

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

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