_:b56732405	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b56732405	<http://www.w3.org/ns/oa#exact>	"frequency" .
_:b56732404	<http://www.w3.org/ns/oa#hasSelector>	_:b56732405 .
_:b56732404	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/752402c32895a7c8c86530c8d20e60a5e7780400/0> .