_:b57971140	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/9046421797506dc01f98e2963b08e5598dff487f/1> .
_:b57971140	<http://www.w3.org/ns/oa#hasSelector>	_:b57971141 .
_:b57971141	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57971141	<http://www.w3.org/ns/oa#exact>	"activity" .