_:b56639225	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b56639225	<http://www.w3.org/ns/oa#exact>	"duration" .
_:b56639224	<http://www.w3.org/ns/oa#hasSelector>	_:b56639225 .
_:b56639224	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/51d37c55030f7c7570f83c8a75f5e6a97209a6c5/2> .