_:b57972624	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/20174a0a241b83eafe67f99aed68cb0f165b9f11/2> .
_:b57972625	<http://www.w3.org/ns/oa#exact>	"concentrations" .
_:b57972624	<http://www.w3.org/ns/oa#hasSelector>	_:b57972625 .
_:b57972625	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .