_:b56516796	<http://www.w3.org/ns/oa#hasSelector>	_:b56516797 .
_:b56516797	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b56516797	<http://www.w3.org/ns/oa#exact>	"levels" .
_:b56516796	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/4c71e5b4d4b332ee8522373d949ceff2bed03718/4> .