_:b57786172	<http://www.w3.org/ns/oa#hasSelector>	_:b57786173 .
_:b57786173	<http://www.w3.org/ns/oa#exact>	"concentration" .
_:b57786172	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/7510a6b58f817294bf4bd79bec50e3c10b6e145c/1> .
_:b57786173	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .