_:b56777148	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/64a69a98274e2d7e11e2113546c65718f4b8cbd6/1> .
_:b56777148	<http://www.w3.org/ns/oa#hasSelector>	_:b56777149 .
_:b56777149	<http://www.w3.org/ns/oa#exact>	"respiratory symptoms" .
_:b56777149	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .