*SUPPORT*
IN: zup OUT: RED
IN: fep tufa OUT: PURPLE PINK
IN: zup gazzer dax OUT: RED BLUE
IN: fep OUT: PURPLE
IN: zup gazzer fep OUT: RED PURPLE
IN: fep gazzer zup OUT: PURPLE RED
IN: fep zup tufa zup gazzer zup OUT: PURPLE RED PINK RED RED
IN: dax tufa kiki zup OUT: BLUE PINK RED
IN: tufa OUT: PINK
IN: zup blicket dax gazzer dax OUT: BLUE BLUE RED
IN: dax gazzer zup OUT: BLUE RED
IN: dax gazzer tufa OUT: BLUE PINK
IN: fep kiki fep OUT: PURPLE PURPLE
IN: tufa zup kiki zup OUT: PINK RED RED

*QUERY*
IN: tufa kiki zup OUT: PINK RED
IN: tufa kiki fep blicket dax gazzer tufa OUT: BLUE PINK PINK PURPLE
IN: dax tufa OUT: BLUE PINK
IN: tufa dax fep gazzer dax blicket dax OUT: BLUE PINK BLUE PURPLE BLUE
IN: tufa gazzer tufa OUT: PINK PINK
IN: fep gazzer tufa OUT: PURPLE PINK
IN: tufa kiki tufa blicket zup fep gazzer dax OUT: RED PURPLE BLUE PINK PINK
IN: zup dax kiki zup OUT: RED BLUE RED
IN: fep kiki dax OUT: PURPLE BLUE
IN: zup fep gazzer dax OUT: RED PURPLE BLUE

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