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

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

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