_:b57497520	<http://www.w3.org/ns/oa#hasSelector>	_:b57497521 .
_:b57497521	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57497520	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/61025296e0cb8f5a84d75c751fbab2b8ce78861f/1> .
_:b57497521	<http://www.w3.org/ns/oa#exact>	"symptoms" .