*SUPPORT*
IN: zup fep blicket fep OUT: PINK RED RED
IN: fep fep wif wif OUT: RED RED RED RED RED RED RED RED
IN: fep gazzer dax gazzer zup OUT: RED BLUE PINK
IN: dax blicket dax wif OUT: BLUE BLUE BLUE BLUE
IN: tufa zup wif OUT: PURPLE PINK PURPLE PINK
IN: fep blicket tufa OUT: PURPLE RED
IN: dax OUT: BLUE
IN: dax blicket zup wif OUT: PINK BLUE PINK BLUE
IN: fep blicket fep gazzer zup OUT: RED RED PINK
IN: fep gazzer dax wif gazzer dax OUT: RED BLUE RED BLUE BLUE
IN: zup blicket zup wif OUT: PINK PINK PINK PINK
IN: zup fep blicket zup OUT: PINK PINK RED
IN: tufa blicket tufa OUT: PURPLE PURPLE
IN: fep OUT: RED

*QUERY*
IN: tufa blicket fep OUT: RED PURPLE
IN: tufa blicket tufa gazzer dax wif OUT: PURPLE PURPLE BLUE PURPLE PURPLE BLUE
IN: tufa dax gazzer fep OUT: PURPLE BLUE RED
IN: fep blicket fep wif OUT: RED RED RED RED
IN: zup wif OUT: PINK PINK
IN: zup OUT: PINK
IN: fep blicket dax gazzer dax OUT: BLUE RED BLUE
IN: zup blicket dax OUT: BLUE PINK
IN: tufa blicket dax OUT: BLUE PURPLE
IN: dax zup blicket tufa OUT: BLUE PURPLE PINK

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