_:b57838409	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57838408	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/cbab61c03b58e81082109fa56830f400890485fc/11> .
_:b57838408	<http://www.w3.org/ns/oa#hasSelector>	_:b57838409 .
_:b57838409	<http://www.w3.org/ns/oa#exact>	"hospital stay" .