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

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

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