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

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

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