_:b57340940	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/f9452f1387491a707a183f73dccf8145e0fa82f1/1> .
_:b57340940	<http://www.w3.org/ns/oa#hasSelector>	_:b57340941 .
_:b57340941	<http://www.w3.org/ns/oa#exact>	"duration" .
_:b57340941	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .