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

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

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