_:b56791304	<http://www.w3.org/ns/oa#hasSelector>	_:b56791305 .
_:b56791305	<http://www.w3.org/ns/oa#exact>	"concentrations" .
_:b56791304	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/be25a5844f3d820a1bb0a3a8e7f20ee63651e884/3> .
_:b56791305	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .