_:b57883796	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/12fc7df6445be6360090621b75df383ce86772af/2> .
_:b57883796	<http://www.w3.org/ns/oa#hasSelector>	_:b57883797 .
_:b57883797	<http://www.w3.org/ns/oa#exact>	"degradation" .
_:b57883797	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .