_:b56619924	<http://www.w3.org/ns/oa#hasSelector>	_:b56619925 .
_:b56619925	<http://www.w3.org/ns/oa#exact>	"concentration" .
_:b56619925	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b56619924	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/049131284ffbf660358d0f699f6c70dde29b0b35/4> .