_:b57864968	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/3848d1b2c5d0d6c2c8f873af30bb20a6e7cdab31/1> .
_:b57864969	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57864968	<http://www.w3.org/ns/oa#hasSelector>	_:b57864969 .
_:b57864969	<http://www.w3.org/ns/oa#exact>	"chest congestion" .