_:b56271325	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b56271324	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/4eb0f78e44d8fce971534174b28dbc184718eeca/1> .
_:b56271325	<http://www.w3.org/ns/oa#exact>	"heparin" .
_:b56271324	<http://www.w3.org/ns/oa#hasSelector>	_:b56271325 .