<http://schema.org/query-input>
"required name=search_term_string"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.upi.com/blog/2013/05/12/Maya-Angelou-on-her-mother-I-became-unafraid-because-of-her/1511368399351/?st_rec=1881368462399>