_:b57517164	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/8a541d5535412574cecb9a7bf5489e569896d15c/3> .
_:b57517165	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57517165	<http://www.w3.org/ns/oa#exact>	"antigens" .
_:b57517164	<http://www.w3.org/ns/oa#hasSelector>	_:b57517165 .