<tt xmlns:ttm="http://www.w3.org/2006/10/ttaf1#metadata"
    xmlns:ttp="http://www.w3.org/2006/10/ttaf1#parameter"
    xmlns:tts="http://www.w3.org/2006/10/ttaf1#style"
    xmlns="http://www.w3.org/ns/ttml">
  <head>
    <styling>
      <style id="cont" tts:ruby="container" />
      <style id="base" tts:ruby="base" />
      <style id="text" tts:ruby="text" />
    </styling>
  </head>
  <body>
    <div>
      <!-- Base before and after text, one with explicit position -->
      <p begin="10s" end="18s">
        Cue with
        <span tts:ruby="container" tts:rubyPosition="before">
          <span tts:ruby="base">annotated</span>
          <span tts:ruby="text">1st rubies</span>
        </span>
        <span tts:ruby="container">
          <span tts:ruby="text">2nd rubies</span>
          <span tts:ruby="base">text</span>.
        </span>
      </p>
    </div>
    <div>
      <!-- Delimiter (parenthetical) text is stripped -->
      <p begin="20s" end="28s">
        Cue with
        <span tts:ruby="container">
          <span tts:ruby="text">rubies</span>
          <span tts:ruby="base">annotated</span>
          <span tts:ruby="delimiter">alt-text</span>
        </span>
        text.
      </p>
    </div>
    <div>
      <!-- ruby info in style block -->
      <p begin="30s" end="38s">
        Cue with
        <span style="cont">
          <span style="base">annotated</span>
          <span style="text">rubies</span>
          text.
        </span>
      </p>
    </div>
    <div>
      <!-- No text section -> no span -->
      <p begin="40s" end="48s">
        Cue with
        <span tts:ruby="container" tts:rubyPosition="before">
          <span tts:ruby="base">annotated</span>
        </span>
        text.
      </p>
    </div>
    <div>
      <!-- No base section -> text still stripped-->
      <p begin="50s" end="58s">
        Cue with
        <span tts:ruby="container" tts:rubyPosition="before">
          <span tts:ruby="text">rubies</span>
        </span>
        text.
      </p>
    </div>
    <div>
      <!-- No container section -> text still stripped-->
      <p begin="60s" end="68s">
        Cue with
        <span tts:ruby="text">rubies</span>
        <span tts:ruby="base">annotated</span>
        text.
      </p>
    </div>
  </body>
</tt>
