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

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

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