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

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

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