_:b57789172	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/39b34a46c9b5074f67062eab3506cf7b37c9cd68/1> .
_:b57789173	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57789173	<http://www.w3.org/ns/oa#exact>	"features" .
_:b57789172	<http://www.w3.org/ns/oa#hasSelector>	_:b57789173 .