_:b57013909	<http://www.w3.org/ns/oa#exact>	"concentrations" .
_:b57013909	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57013908	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/a52d0a295bcdfd853333baa23fd5d336ec21014c/2> .
_:b57013908	<http://www.w3.org/ns/oa#hasSelector>	_:b57013909 .