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

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

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