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

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

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