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

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

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