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

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

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