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

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

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