_:b56461232	<http://www.w3.org/ns/oa#hasSelector>	_:b56461233 .
_:b56461233	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b56461232	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/44b4a17ec8663520f1509be1cbae39ea188b6d81/0> .
_:b56461233	<http://www.w3.org/ns/oa#exact>	"concentrations" .