_:b57189804	<http://www.w3.org/ns/oa#hasSelector>	_:b57189805 .
_:b57189805	<http://www.w3.org/ns/oa#exact>	"essential" .
_:b57189805	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57189804	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/40e01c73f34fc6f4a44ba96983e0ea3097149cd5/0> .