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

*QUERY*
IN: dax OUT: GREEN
IN: gazzer zup blicket tufa OUT: PINK BLUE RED
IN: dax kiki tufa OUT: GREEN BLUE
IN: dax blicket zup OUT: RED GREEN
IN: dax blicket dax OUT: GREEN GREEN
IN: tufa gazzer blicket tufa OUT: BLUE BLUE PINK
IN: gazzer kiki tufa OUT: PINK BLUE
IN: gazzer blicket tufa OUT: BLUE PINK
IN: zup zup OUT: RED RED
IN: zup kiki gazzer OUT: RED PINK

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