_:b56307933	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b56307932	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/18cb299ffe4605032e106ecc23f4d7db73f60e9e/2> .
_:b56307932	<http://www.w3.org/ns/oa#hasSelector>	_:b56307933 .
_:b56307933	<http://www.w3.org/ns/oa#exact>	"heparin" .