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

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

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