_:b57770960	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/0bf71f95675832c8cd5752d709516f90d8372384/1> .
_:b57770960	<http://www.w3.org/ns/oa#hasSelector>	_:b57770961 .
_:b57770961	<http://www.w3.org/ns/oa#exact>	"participation" .
_:b57770961	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .