_:b56912836 <http://www.w3.org/ns/oa#hasSelector> _:b56912837 . _:b56912837 <http://www.w3.org/ns/oa#exact> "mortality" . _:b56912837 <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/oa#TextQuoteSelector> . _:b56912836 <http://www.w3.org/ns/oa#hasSource> <http://ns.inria.fr/covid19/arg/258d2f000844911ba8b21977d5a16a3c6ccc597f/0> .