_:b56594176	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/fa3530d0b609b8874f5db69242765964999df104/0> .
_:b56594176	<http://www.w3.org/ns/oa#hasSelector>	_:b56594177 .
_:b56594177	<http://www.w3.org/ns/oa#exact>	"mediastinal emphysema" .
_:b56594177	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .