<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.genengnews.com/keywordsandtools/email/gen-articles/tips-on-maintaining-high-standards-in-cell-culture-how-to-avoid-the-spreading-problem-of-cell-line-contamination/27598/>