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

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

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