_:b56406365	<http://www.w3.org/ns/oa#exact>	"concentration" .
_:b56406364	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/2989bf36068372cfedef82f58f4777e60ccbcfaa/2> .
_:b56406364	<http://www.w3.org/ns/oa#hasSelector>	_:b56406365 .
_:b56406365	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .