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

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

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