_:b56967525	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b56967524	<http://www.w3.org/ns/oa#hasSelector>	_:b56967525 .
_:b56967525	<http://www.w3.org/ns/oa#exact>	"concentrations" .
_:b56967524	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/0eb0709167c38890dad1f603a5d0be1799842143/0> .