_:b57980264	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/0b20c1b180de5a9369b17e751765560a720c2d76/0> .
_:b57980264	<http://www.w3.org/ns/oa#hasSelector>	_:b57980265 .
_:b57980265	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57980265	<http://www.w3.org/ns/oa#exact>	"symptom" .