_:b57328780	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/63338806606553f16a50d919c499535af10b595f/4> .
_:b57328781	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57328781	<http://www.w3.org/ns/oa#exact>	"exacerbations" .
_:b57328780	<http://www.w3.org/ns/oa#hasSelector>	_:b57328781 .