_:b57070924 <http://www.w3.org/ns/oa#hasSelector> _:b57070925 . _:b57070925 <http://www.w3.org/ns/oa#exact> "mortality" . _:b57070925 <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/oa#TextQuoteSelector> . _:b57070924 <http://www.w3.org/ns/oa#hasSource> <http://ns.inria.fr/covid19/arg/caf2d8ef6c1970e596f3f14ae6c4b43a26bba2c5/9> .