_:b57481472	<http://www.w3.org/ns/oa#hasSelector>	_:b57481473 .
_:b57481473	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57481472	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/888f3a42d4361d36b3ffbe619427ace11fae0e1b/0> .
_:b57481473	<http://www.w3.org/ns/oa#exact>	"knowledge" .