_:b57907641	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57907640	<http://www.w3.org/ns/oa#hasSelector>	_:b57907641 .
_:b57907641	<http://www.w3.org/ns/oa#exact>	"mortality" .
_:b57907640	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/d040e6d03a6e02e8f21012e1fbd04b6d21da5284/0> .