_:b56672501	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b56672500	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/3f1dd22fd366efca2448379f7becf69de113353a/2> .
_:b56672501	<http://www.w3.org/ns/oa#exact>	"frequency" .
_:b56672500	<http://www.w3.org/ns/oa#hasSelector>	_:b56672501 .