_:b57958400	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/fa6cd222803f9015c5325822ee864cc6bcdee151/0> .
_:b57958401	<http://www.w3.org/ns/oa#exact>	"frequency" .
_:b57958400	<http://www.w3.org/ns/oa#hasSelector>	_:b57958401 .
_:b57958401	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .