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

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

*GRAMMAR*
gazzer -> GREEN 
 wif -> PINK 
 dax -> YELLOW 
 tufa -> RED 
 u1 kiki u2 -> [u2] [u1] 
 u1 zup -> [u1] [u1] [u1] 
 x1 blicket x2 -> [x2] [x1] 
 u1 x1 -> [u1] [x1] 
 