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

*QUERY*
IN: kiki lug zup OUT: RED PINK
IN: zup lug gazzer OUT: GREEN RED
IN: gazzer lug zup OUT: RED GREEN
IN: zup dax OUT: RED RED
IN: kiki lug gazzer dax OUT: GREEN PINK GREEN PINK
IN: gazzer kiki OUT: GREEN PINK
IN: zup lug zup dax OUT: RED RED RED RED
IN: zup lug zup OUT: RED RED
IN: kiki dax OUT: PINK PINK
IN: kiki lug zup dax OUT: RED PINK RED PINK

*GRAMMAR*
fep -> BLUE 
 gazzer -> GREEN 
 zup -> RED 
 kiki -> PINK 
 x1 tufa x2 -> [x1] [x1] [x2] [x1] [x1] [x2] 
 x1 dax -> [x1] [x1] 
 u1 lug u2 -> [u2] [u1] 
 u1 x1 -> [u1] [x1] 
 