<http://schema.org/headline>
"L\u00EF\u00BF\u00BDapprentissage \u00EF\u00BF\u00BD la propret\u00EF\u00BF\u00BD"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.educatout.com/edu-conseils/strategie-apprentissages/l-apprentissage-a-la-proprete.htm>