_:b57928832	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/51667c85b8b8170c950a1b561b3f2245c3cdce25/1> .
_:b57928832	<http://www.w3.org/ns/oa#hasSelector>	_:b57928833 .
_:b57928833	<http://www.w3.org/ns/oa#exact>	"upper respiratory symptoms" .
_:b57928833	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .