_:b57153420	<http://www.w3.org/ns/oa#hasSelector>	_:b57153421 .
_:b57153421	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57153421	<http://www.w3.org/ns/oa#exact>	"severity scores" .
_:b57153420	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/aac65c7f71a49d05c3cdbdcf0811cd0ff98d2d23/1> .