_:b57695969	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57695968	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/79e6929cbb7b35a18475c1e077bf7406aac962e8/19> .
_:b57695969	<http://www.w3.org/ns/oa#exact>	"concentrations" .
_:b57695968	<http://www.w3.org/ns/oa#hasSelector>	_:b57695969 .