_:b57122721	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57122720	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/abeb360d9da928907bd8a03e22c2a4cf60a6a8d6/4> .
_:b57122720	<http://www.w3.org/ns/oa#hasSelector>	_:b57122721 .
_:b57122721	<http://www.w3.org/ns/oa#exact>	"degradation" .