_:b56286856	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/8700821aac5df2cd192e188c76abca5fd83ae272/3> .
_:b56286857	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b56286856	<http://www.w3.org/ns/oa#hasSelector>	_:b56286857 .
_:b56286857	<http://www.w3.org/ns/oa#exact>	"heparin" .