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

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

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