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

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

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