_:b56763604	<http://www.w3.org/ns/oa#hasSelector>	_:b56763605 .
_:b56763605	<http://www.w3.org/ns/oa#exact>	"concentration" .
_:b56763605	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b56763604	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/8c198653c7db388f64662e77fd74bf62bacbf0a5/2> .