_:b56308577	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b56308576	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/dd969a7721176db21314930b62e62a37e902dae5/2> .
_:b56308577	<http://www.w3.org/ns/oa#exact>	"heparin" .
_:b56308576	<http://www.w3.org/ns/oa#hasSelector>	_:b56308577 .