_:b57541721	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57541720	<http://www.w3.org/ns/oa#hasSelector>	_:b57541721 .
_:b57541721	<http://www.w3.org/ns/oa#exact>	"beta" .
_:b57541720	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/8cffd97c4b0f3c1d9a3f8e0950892899711864a6/10> .