_:b57949177	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57949177	<http://www.w3.org/ns/oa#exact>	"serum" .
_:b57949176	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/18aec2c3b6e8c5b72d24b6aa29753719627504ef/0> .
_:b57949176	<http://www.w3.org/ns/oa#hasSelector>	_:b57949177 .