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

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

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