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

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

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