_:b56688652	<http://www.w3.org/ns/oa#hasSelector>	_:b56688653 .
_:b56688653	<http://www.w3.org/ns/oa#exact>	"frequency" .
_:b56688653	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b56688652	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/7d14338dbc13d014f4066aa98c7e74673f3d58e5/0> .