_:b56256820	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/4f7c0df011e53936b93f38aabee187cf6f202a99/1> .
_:b56256821	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b56256820	<http://www.w3.org/ns/oa#hasSelector>	_:b56256821 .
_:b56256821	<http://www.w3.org/ns/oa#exact>	"vaccine" .