_:b57790853	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57790852	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/239cd6dbc4b75c51256acc527ae69394b891bc1d/2> .
_:b57790852	<http://www.w3.org/ns/oa#hasSelector>	_:b57790853 .
_:b57790853	<http://www.w3.org/ns/oa#exact>	"migration" .