_:b57971857	<http://www.w3.org/ns/oa#exact>	"Delta" .
_:b57971856	<http://www.w3.org/ns/oa#hasSelector>	_:b57971857 .
_:b57971856	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/56388757b43ab946bad27e45b7899ff22aedcca9/1> .
_:b57971857	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .