_:b57506753	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57506752	<http://www.w3.org/ns/oa#hasSelector>	_:b57506753 .
_:b57506752	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/8bcd6f4684b338453ed77105d7c6f5b0bfd18e94/0> .
_:b57506753	<http://www.w3.org/ns/oa#exact>	"concentrations" .