_:b57729648	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/3dfe29d041cefc6bf7640ae82e2512dba55d9a7d/2> .
_:b57729649	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57729649	<http://www.w3.org/ns/oa#exact>	"activity" .
_:b57729648	<http://www.w3.org/ns/oa#hasSelector>	_:b57729649 .