<http://schema.org/alternativeHeadline>
"With a donation of $970 million, the Facebook co-founder tops the list of the nation's 50 most generous donors. Combined, they gave away $7.7 billion."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/money/personal-finance/stories/mark-zuckerberg-tops-list-of-most-generous-americans-with-nearly-1>