A SpeakableSpecification indicates (typically via <a class="localLink" href="http://schema.org/xpath">xpath</a> or <a class="localLink" href="http://schema.org/cssSelector">cssSelector</a>) sections of a document that are highlighted as particularly <a class="localLink" href="http://schema.org/speakable">speakable</a>. Instances of this type are expected to be used primarily as values of the <a class="localLink" href="http://schema.org/speakable">speakable</a> property.