_:b57313576	<http://www.w3.org/ns/oa#hasSelector>	_:b57313577 .
_:b57313577	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57313577	<http://www.w3.org/ns/oa#exact>	"severe" .
_:b57313576	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/27af1865c4edab855dd3203b668ba2a7b2c9e3e3/0> .