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

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

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