_:b57240524 <http://www.w3.org/ns/oa#hasSource> <http://ns.inria.fr/covid19/arg/84d7153dd4479c7766ede59afe8f072e4b7892fc/3> . _:b57240525 <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/oa#TextQuoteSelector> . _:b57240525 <http://www.w3.org/ns/oa#exact> "lung abnormalities" . _:b57240524 <http://www.w3.org/ns/oa#hasSelector> _:b57240525 .