<http://schema.org/alternativeHeadline>
"The producers of the awe-inspiring &lt;i&gt;Planet Earth&lt;/i&gt; return with the dazzling next chapter."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/lifestyle/arts-culture/stories/life-inside-discoverys-new-nature-series>