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

*QUERY*
IN: kiki dax zup lug wif zup wif gazzer OUT: GREEN BLUE RED PURPLE PURPLE PURPLE
IN: wif blicket dax OUT: BLUE PURPLE
IN: wif OUT: PURPLE
IN: kiki OUT: GREEN
IN: wif wif gazzer OUT: PURPLE PURPLE PURPLE
IN: dax lug dax dax blicket lug OUT: BLUE RED BLUE RED BLUE
IN: lug lug OUT: RED RED
IN: wif wif OUT: PURPLE PURPLE
IN: dax zup lug lug OUT: BLUE RED RED
IN: lug blicket dax OUT: BLUE RED

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