_:b57548773	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57548773	<http://www.w3.org/ns/oa#exact>	"levels" .
_:b57548772	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/eede1abaa8c464086c75a03eca86ec9a1f6a4ee9/1> .
_:b57548772	<http://www.w3.org/ns/oa#hasSelector>	_:b57548773 .