_:b56404768	<http://www.w3.org/ns/oa#hasSelector>	_:b56404769 .
_:b56404769	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b56404768	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/9ebda0003ed2fd289bede4454a85b36164cf740b/1> .
_:b56404769	<http://www.w3.org/ns/oa#exact>	"concentration" .