_:b57790405	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57790404	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/47c933debd49e6925f132829d299c71d580a2c18/3> .
_:b57790405	<http://www.w3.org/ns/oa#exact>	"concentrations" .
_:b57790404	<http://www.w3.org/ns/oa#hasSelector>	_:b57790405 .