_:b57263421	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57263420	<http://www.w3.org/ns/oa#hasSelector>	_:b57263421 .
_:b57263421	<http://www.w3.org/ns/oa#exact>	"positive" .
_:b57263420	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/e1d19a77fecd4fde688e814a79bdcb3afe490853/2> .