_:b57431081	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57431080	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/517e4d60093973663e37dba2969be6d7e76fbd30/0> .
_:b57431081	<http://www.w3.org/ns/oa#exact>	"N immunoglobulins" .
_:b57431080	<http://www.w3.org/ns/oa#hasSelector>	_:b57431081 .