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

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

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