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

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

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