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

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

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