itution Subtable</em>. Its finite-state machine
  contains two states (0 and 1). In state 0, glyph <em>A</em> moves to
  state 1 with a transition carrying the <em>SetMark</em> flag; other glyphs
  have no effect. In state 1, glyphs <em>B, C, D, E</em> replace both
  the current and the marked glyph by an encircled form; other glyphs
  have no effect.
</div>

<table>
  <tr>
  <tr>
    <th></th>
    <th style="text-align:center">ABCDE</th>
    <th style="text-align:center">EBCDA</th>
    <th style="text