_:b56618368	<http://www.w3.org/ns/oa#hasSelector>	_:b56618369 .
_:b56618369	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b56618369	<http://www.w3.org/ns/oa#exact>	"retention" .
_:b56618368	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/29f4b1cf4f2cd89851d3b78e6e812fe035030424/48> .