_:b57235080 <http://www.w3.org/ns/oa#hasSource> <http://ns.inria.fr/covid19/arg/47d93c4d0e435b2da5ebc11b4404ed209447f5a0/7> . _:b57235081 <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/oa#TextQuoteSelector> . _:b57235080 <http://www.w3.org/ns/oa#hasSelector> _:b57235081 . _:b57235081 <http://www.w3.org/ns/oa#exact> "lung edema" .