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

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

*GRAMMAR*
lug -> BLUE 
 gazzer -> YELLOW 
 fep -> GREEN 
 dax -> RED 
 u1 tufa -> [u1] [u1] [u1] [u1] [u1] 
 u1 blicket u2 -> [u2] [u1] 
 x1 kiki x2 -> [x1] [x2] 
 u1 x1 -> [u1] [x1] 
 