_:b57552417	<http://www.w3.org/ns/oa#exact>	"concentration" .
_:b57552417	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57552416	<http://www.w3.org/ns/oa#hasSelector>	_:b57552417 .
_:b57552416	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/480b9a53af6b73f2b6787367dad77be21e0c1b3a/0> .