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

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

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