_:b56691689 <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/oa#TextQuoteSelector> . _:b56691688 <http://www.w3.org/ns/oa#hasSource> <http://ns.inria.fr/covid19/arg/648e9c790e9707c35271988c3f86aa147a9eda05/0> . _:b56691689 <http://www.w3.org/ns/oa#exact> "upper respiratory infections" . _:b56691688 <http://www.w3.org/ns/oa#hasSelector> _:b56691689 .