_:b56653580 <http://www.w3.org/ns/oa#hasSelector> _:b56653581 . _:b56653580 <http://www.w3.org/ns/oa#hasSource> <http://ns.inria.fr/covid19/arg/d99149ed98fb75565e7d384303c384c09f40893d/0> . _:b56653581 <http://www.w3.org/ns/oa#exact> "positive" . _:b56653581 <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/oa#TextQuoteSelector> .