_:b56825537	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b56825537	<http://www.w3.org/ns/oa#exact>	"frequency" .
_:b56825536	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/568fec0df53acc098777e861ab6b824bf22ca3e4/0> .
_:b56825536	<http://www.w3.org/ns/oa#hasSelector>	_:b56825537 .