digraph {

        fontname = "Bitstream Vera Sans"
        fontsize = 8

        node [
                fontname = "Bitstream Vera Sans"
                fontsize = 8
                shape = "record"
        ]

        edge [
                fontname = "Bitstream Vera Sans"
                fontsize = 8
        ]

        edge [
	     arrowtail = "none"
		arrowhead = "none"
        ]


      Encoder -> StringEncoder
      Encoder -> AudioEncoder
      StringEncoder -> UTFEncoder
      StringEncoder -> ISOEncoder
      AudioEncoder -> WavEncoder
}