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

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

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