_:b56449493 <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/oa#TextQuoteSelector> . _:b56449492 <http://www.w3.org/ns/oa#hasSelector> _:b56449493 . _:b56449492 <http://www.w3.org/ns/oa#hasSource> <http://ns.inria.fr/covid19/arg/c3007e793fbd8bdd34216046baa08e8ffda8fdc3/1> . _:b56449493 <http://www.w3.org/ns/oa#exact> "association" .