1 <p><i>underscore
</i>,
<i>asterisk
</i>,
<i>one two
</i>,
<i>three four
</i>,
<i>a
</i>,
<i>b
</i></p>
2 <p><strong>strong
</strong> and
<i>em
</i> and
<strong>strong
</strong> and
<i>em
</i></p>
3 <p><i>line
<br class='autobr'
/>
4 line
<br class='autobr'
/>
6 <p>an empty emphasis {} {{}} is not an emphasis
</p>
7 <p><i>mixed
<strong>double and
</i> single asterisk
</strong> spans
</p>