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

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

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