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

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

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