_:b56703337	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b56703337	<http://www.w3.org/ns/oa#exact>	"frequency" .
_:b56703336	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/faf2d77fca399b6ccd470429196b540ee0fec755/0> .
_:b56703336	<http://www.w3.org/ns/oa#hasSelector>	_:b56703337 .