_:b57522261	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57522260	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/3c20c596797997337c0e8ed472cf7847dc467c65/2> .
_:b57522260	<http://www.w3.org/ns/oa#hasSelector>	_:b57522261 .
_:b57522261	<http://www.w3.org/ns/oa#exact>	"secondary cases" .