_:b56944569	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b56944568	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/47657978dd272aff0e0be8c8aa3877b8db673067/0> .
_:b56944568	<http://www.w3.org/ns/oa#hasSelector>	_:b56944569 .
_:b56944569	<http://www.w3.org/ns/oa#exact>	"antigen" .