_:b56308480 <http://www.w3.org/ns/oa#hasSelector> _:b56308481 . _:b56308481 <http://www.w3.org/ns/oa#exact> "OK" . _:b56308480 <http://www.w3.org/ns/oa#hasSource> <http://ns.inria.fr/covid19/arg/12f59e88597b670bd77cb9b75efcb2eebf8f1ad8/1> . _:b56308481 <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/oa#TextQuoteSelector> .