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

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

*GRAMMAR*
blicket -> PURPLE 
 gazzer -> RED 
 zup -> BLUE 
 dax -> YELLOW 
 x1 wif x2 -> [x2] [x1] [x1] 
 u1 kiki -> [u1] [u1] 
 x1 tufa x2 -> [x1] [x1] [x2] [x2] 
 u1 x1 -> [u1] [x1] 
 