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

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

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