_:b56546909	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b56546909	<http://www.w3.org/ns/oa#exact>	"Concentrations" .
_:b56546908	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/2f8ae52dcb5425d54804c59247a20471a39872ef/0> .
_:b56546908	<http://www.w3.org/ns/oa#hasSelector>	_:b56546909 .