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

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

*GRAMMAR*
lug -> GREEN 
 kiki -> BLUE 
 dax -> RED 
 wif -> YELLOW 
 u1 gazzer x1 -> [x1] [u1] [x1] 
 x1 blicket -> [x1] [x1] 
 x1 tufa x2 -> [x2] [x1] 
 u1 x1 -> [u1] [x1] 
 