_:b57900088	<http://www.w3.org/ns/oa#hasSelector>	_:b57900089 .
_:b57900089	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57900089	<http://www.w3.org/ns/oa#exact>	"activity" .
_:b57900088	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/3178ce8195f3f42963e3bf058ef3932ee9743cb9/0> .