_:b57738300	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/1516a62bffb7478ad5cbec0bde15290baf5384a3/2> .
_:b57738300	<http://www.w3.org/ns/oa#hasSelector>	_:b57738301 .
_:b57738301	<http://www.w3.org/ns/oa#exact>	"serum" .
_:b57738301	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .