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

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

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