_:b57781709 <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/oa#TextQuoteSelector> . _:b57781708 <http://www.w3.org/ns/oa#hasSelector> _:b57781709 . _:b57781709 <http://www.w3.org/ns/oa#exact> "survival" . _:b57781708 <http://www.w3.org/ns/oa#hasSource> <http://ns.inria.fr/covid19/arg/54f7f652e2e9f0c01799ff760caaa75d43a0fdb0/36> .