*SUPPORT*
IN: dax wif dax OUT: YELLOW YELLOW
IN: tufa zup OUT: PURPLE RED
IN: zup OUT: RED
IN: zup wif dax kiki kiki OUT: RED YELLOW RED YELLOW RED YELLOW RED YELLOW
IN: gazzer gazzer blicket tufa OUT: BLUE BLUE PURPLE
IN: tufa gazzer blicket zup kiki OUT: PURPLE BLUE RED PURPLE BLUE RED
IN: gazzer blicket gazzer OUT: BLUE BLUE
IN: zup wif dax blicket zup OUT: RED YELLOW RED
IN: dax wif gazzer blicket dax OUT: YELLOW BLUE YELLOW
IN: zup wif zup blicket gazzer OUT: RED RED BLUE
IN: gazzer kiki OUT: BLUE BLUE
IN: tufa kiki OUT: PURPLE PURPLE
IN: tufa OUT: PURPLE
IN: dax blicket gazzer kiki OUT: YELLOW BLUE YELLOW BLUE

*QUERY*
IN: gazzer zup tufa tufa blicket dax OUT: BLUE RED PURPLE PURPLE YELLOW
IN: gazzer blicket tufa OUT: BLUE PURPLE
IN: dax kiki OUT: YELLOW YELLOW
IN: tufa wif gazzer blicket dax OUT: PURPLE BLUE YELLOW
IN: tufa gazzer gazzer blicket zup OUT: PURPLE BLUE BLUE RED
IN: tufa blicket tufa OUT: PURPLE PURPLE
IN: tufa dax tufa wif dax tufa OUT: PURPLE YELLOW PURPLE YELLOW PURPLE
IN: gazzer OUT: BLUE
IN: dax blicket gazzer OUT: YELLOW BLUE
IN: zup zup tufa blicket dax OUT: RED RED PURPLE YELLOW

*GRAMMAR*
dax -> YELLOW 
 tufa -> PURPLE 
 gazzer -> BLUE 
 zup -> RED 
 u1 blicket u2 -> [u1] [u2] 
 x1 kiki -> [x1] [x1] 
 u1 wif x1 -> [u1] [x1] 
 u1 x1 -> [u1] [x1] 
 