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

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

*GRAMMAR*
dax -> BLUE 
 fep -> YELLOW 
 lug -> GREEN 
 gazzer -> RED 
 x1 zup x2 -> [x1] [x2] 
 x1 wif -> [x1] [x1] 
 x1 kiki -> [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 