_:b56513669	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b56513668	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/2c18a725ef2cae0255d4ca509d9a119c4dc8b761/5> .
_:b56513669	<http://www.w3.org/ns/oa#exact>	"concentration" .
_:b56513668	<http://www.w3.org/ns/oa#hasSelector>	_:b56513669 .