_:b57019260	<http://www.w3.org/ns/oa#hasSelector>	_:b57019261 .
_:b57019261	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57019260	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/8237ecd140040f713851f0dc4dcd84d648e1a22e/1> .
_:b57019261	<http://www.w3.org/ns/oa#exact>	"Seropositivity" .