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

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

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