_:b56558129	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b56558128	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/1d731161d1d09c1dee91dcd185d73734275b16df/2> .
_:b56558128	<http://www.w3.org/ns/oa#hasSelector>	_:b56558129 .
_:b56558129	<http://www.w3.org/ns/oa#exact>	"serum" .