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

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

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