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

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

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