<http://schema.org/alternativeHeadline>
"The unlisted ingredients ranged from natural laxatives to soybean and wheat, all of which could cause health problems, depending on the person."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/health/fitness-well-being/stories/herbal-supplements-often-contain-unlisted-ingredients>