*SUPPORT*
IN: dax dax blicket OUT: YELLOW YELLOW YELLOW YELLOW
IN: zup fep zup OUT: BLUE BLUE
IN: zup blicket OUT: BLUE BLUE BLUE
IN: tufa OUT: PURPLE
IN: tufa fep tufa OUT: PURPLE PURPLE
IN: dax kiki OUT: YELLOW YELLOW YELLOW YELLOW
IN: dax OUT: YELLOW
IN: dax fep zup OUT: BLUE YELLOW
IN: gazzer gazzer kiki OUT: RED RED RED RED RED RED RED RED
IN: zup dax gazzer fep gazzer OUT: BLUE YELLOW RED RED
IN: tufa kiki OUT: PURPLE PURPLE PURPLE PURPLE
IN: gazzer kiki OUT: RED RED RED RED
IN: dax fep gazzer OUT: RED YELLOW
IN: gazzer gazzer fep tufa OUT: RED PURPLE RED

*QUERY*
IN: tufa blicket OUT: PURPLE PURPLE PURPLE
IN: tufa fep zup OUT: BLUE PURPLE
IN: tufa fep dax OUT: YELLOW PURPLE
IN: gazzer zup fep dax OUT: RED YELLOW BLUE
IN: dax blicket OUT: YELLOW YELLOW YELLOW
IN: dax fep zup kiki OUT: BLUE YELLOW BLUE YELLOW BLUE YELLOW BLUE YELLOW
IN: zup tufa kiki OUT: BLUE PURPLE BLUE PURPLE BLUE PURPLE BLUE PURPLE
IN: zup fep tufa OUT: PURPLE BLUE
IN: zup tufa blicket OUT: BLUE PURPLE PURPLE PURPLE
IN: gazzer fep tufa OUT: PURPLE RED

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