_:b56678421	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b56678420	<http://www.w3.org/ns/oa#hasSelector>	_:b56678421 .
_:b56678421	<http://www.w3.org/ns/oa#exact>	"activity" .
_:b56678420	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/217893792319e75e98435189a26abef4892faac0/1> .