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

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

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