_:b57725348	<http://www.w3.org/ns/oa#hasSelector>	_:b57725349 .
_:b57725349	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57725349	<http://www.w3.org/ns/oa#exact>	"PS" .
_:b57725348	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/8e359a65849e36b10841786ba681720de5650f6d/19> .