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

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

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