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

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

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