_:b57504320	<http://www.w3.org/ns/oa#hasSelector>	_:b57504321 .
_:b57504321	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57504320	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/e49ca8a89d9a65a33e48de3fa3a12bffc283295f/0> .
_:b57504321	<http://www.w3.org/ns/oa#exact>	"signs" .