_:b56557353	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b56557352	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/c919e8207dd55fd99f8273a1b32cd5cab56808ca/0> .
_:b56557353	<http://www.w3.org/ns/oa#exact>	"frequency" .
_:b56557352	<http://www.w3.org/ns/oa#hasSelector>	_:b56557353 .