_:b56525021	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b56525020	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/651e3e8f876561953588dcb671789c685b7ee16a/0> .
_:b56525021	<http://www.w3.org/ns/oa#exact>	"concentration" .
_:b56525020	<http://www.w3.org/ns/oa#hasSelector>	_:b56525021 .