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

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

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