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

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

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