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

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

*GRAMMAR*
gazzer -> RED 
 wif -> PURPLE 
 tufa -> YELLOW 
 blicket -> BLUE 
 x1 fep x2 -> [x1] [x2] [x1] [x2] 
 u1 dax -> [u1] [u1] [u1] [u1] [u1] 
 u1 zup u2 -> [u2] [u1] 
 u1 x1 -> [u1] [x1] 
 