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

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

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