*SUPPORT*
IN: zup gazzer wif zup blicket dax lug dax OUT: BLUE GREEN BLUE GREEN RED BLUE GREEN BLUE
IN: zup dax blicket dax lug dax OUT: GREEN BLUE BLUE BLUE
IN: zup gazzer lug zup OUT: GREEN RED GREEN
IN: tufa zup blicket dax lug dax OUT: PURPLE BLUE GREEN BLUE
IN: dax lug zup wif tufa gazzer blicket zup OUT: PURPLE GREEN RED BLUE GREEN PURPLE GREEN RED
IN: zup blicket tufa OUT: PURPLE GREEN
IN: dax blicket gazzer lug gazzer OUT: RED BLUE RED
IN: gazzer wif dax blicket dax OUT: BLUE BLUE RED BLUE BLUE
IN: dax blicket dax OUT: BLUE BLUE
IN: dax gazzer blicket tufa OUT: BLUE PURPLE RED
IN: gazzer blicket tufa wif dax dax OUT: BLUE BLUE PURPLE RED BLUE BLUE
IN: gazzer blicket dax OUT: BLUE RED
IN: dax zup blicket zup OUT: BLUE GREEN GREEN
IN: tufa blicket tufa OUT: PURPLE PURPLE

*QUERY*
IN: gazzer blicket gazzer OUT: RED RED
IN: tufa blicket gazzer OUT: RED PURPLE
IN: zup blicket gazzer OUT: RED GREEN
IN: dax OUT: BLUE
IN: tufa wif dax lug zup OUT: BLUE GREEN PURPLE BLUE GREEN
IN: zup OUT: GREEN
IN: tufa gazzer OUT: PURPLE RED
IN: zup blicket dax OUT: BLUE GREEN
IN: tufa OUT: PURPLE
IN: dax zup OUT: BLUE GREEN

*GRAMMAR*
zup -> GREEN 
 gazzer -> RED 
 dax -> BLUE 
 tufa -> PURPLE 
 u1 blicket u2 -> [u2] [u1] 
 x1 wif x2 -> [x2] [x1] [x2] 
 x1 lug u1 -> [x1] [u1] 
 u1 x1 -> [u1] [x1] 
 