_:b57952409	<http://www.w3.org/ns/oa#exact>	"concentration" .
_:b57952408	<http://www.w3.org/ns/oa#hasSelector>	_:b57952409 .
_:b57952409	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57952408	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/9d91d28123b450fa82b529e277fd8601a39dda32/3> .