_:b56453980	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/7bb973611fdfdbfb74d3edf94324fa9f723a8965/5> .
_:b56453981	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b56453981	<http://www.w3.org/ns/oa#exact>	"immune responses" .
_:b56453980	<http://www.w3.org/ns/oa#hasSelector>	_:b56453981 .