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

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

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