_:b56987404	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/d1633b711457ab30921f3e70d88230d8190c45f7/0> .
_:b56987405	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b56987404	<http://www.w3.org/ns/oa#hasSelector>	_:b56987405 .
_:b56987405	<http://www.w3.org/ns/oa#exact>	"antiviral serum antibody" .