<http://schema.org/alternativeHeadline>
"Vulcan, the alien home planet of Spock from 'Star Trek,' is currently leading in an online poll organized by the California-based SETI Institute."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/earth-matters/space/blogs/william-shatner-calls-on-trekkies-to-name-plutos-moon-vulcan>