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

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

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