<http://schema.org/alternativeHeadline>
"This sprawling Phoenix park, which covers nearly 17,000 acres, is considered the largest municipal park in the U.S."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/earth-matters/wilderness-resources/stories/south-mountain-park-in-phoenix-a-users-guide>