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

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

*GRAMMAR*
lug -> GREEN 
 blicket -> BLUE 
 zup -> RED 
 tufa -> YELLOW 
 u1 fep u2 -> [u2] [u1] [u2] [u1] 
 u1 dax -> [u1] [u1] [u1] 
 x1 kiki x2 -> [x2] [x2] [x1] 
 u1 x1 -> [u1] [x1] 
 