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

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

*GRAMMAR*
fep -> BLUE 
 wif -> RED 
 dax -> PURPLE 
 blicket -> YELLOW 
 x1 kiki x2 -> [x2] [x1] 
 u1 zup u2 -> [u1] [u2] 
 x1 tufa -> [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 