_:b56831508 <http://www.w3.org/ns/oa#hasSelector> _:b56831509 . _:b56831508 <http://www.w3.org/ns/oa#hasSource> <http://ns.inria.fr/covid19/arg/bf429f2d8ddaf58fb166d275fab628227deaf176/1> . _:b56831509 <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/oa#TextQuoteSelector> . _:b56831509 <http://www.w3.org/ns/oa#exact> "USP" .