_:b57100436	<http://www.w3.org/ns/oa#hasSelector>	_:b57100437 .
_:b57100436	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/df48a04308ec9b76dbba25c026b3cfb7da8e5497/6> .
_:b57100437	<http://www.w3.org/ns/oa#exact>	"concentrations" .
_:b57100437	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .