<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<http://schema.org/NewsArticle>
<http://www.lainformacion.com/salud/cancer/los-canceres-de-cabeza-y-cuello-representan-el-7-de-los-tumores-malignos-segun-experto_Te0s43frR1t71D2okXDbS5/>