<http://schema.org/description>
"Hay is the most important part of the horse\u2019s diet and makes up 50-100% of the horse\u2019s diet."^^<http://www.w3.org/2001/XMLSchema#string>
<http://extension.psu.edu/animals/equine/news/2014/hay-quality-for-different-classes-of-horses>