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

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

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