_:b56973244	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/b5eec734574ef20c09a708533829ce6b4908d651/2> .
_:b56973245	<http://www.w3.org/ns/oa#exact>	"levels" .
_:b56973244	<http://www.w3.org/ns/oa#hasSelector>	_:b56973245 .
_:b56973245	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .