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

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

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