_:b57968564	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/19a581b83ad1306fb0ef7d5e9d071b31e8506809/3> .
_:b57968564	<http://www.w3.org/ns/oa#hasSelector>	_:b57968565 .
_:b57968565	<http://www.w3.org/ns/oa#exact>	"mortality" .
_:b57968565	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .