_:b56476356	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/f16c920736841eabbd63861480e12d70a832f7d8/0> .
_:b56476357	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b56476356	<http://www.w3.org/ns/oa#hasSelector>	_:b56476357 .
_:b56476357	<http://www.w3.org/ns/oa#exact>	"concentration" .