_:b57098580	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/41844a2070ccbee22d9b5ed77682c9725c012db4/1> .
_:b57098581	<http://www.w3.org/ns/oa#exact>	"free survival" .
_:b57098580	<http://www.w3.org/ns/oa#hasSelector>	_:b57098581 .
_:b57098581	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .