_:b56314249	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b56314248	<http://www.w3.org/ns/oa#hasSelector>	_:b56314249 .
_:b56314249	<http://www.w3.org/ns/oa#exact>	"length of stay" .
_:b56314248	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/d21fa928caf0a005ec786eee0dfce0a8e81dc608/2> .