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

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

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