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

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

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