_:b57992592	<http://www.w3.org/ns/oa#hasSelector>	_:b57992593 .
_:b57992593	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57992592	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/1cdf25b789658248ec77201115f5dee0710277b1/19> .
_:b57992593	<http://www.w3.org/ns/oa#exact>	"concentrations" .