_:b56758044	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/85d302e1bc154a763980d7c906679313f412185c/2> .
_:b56758044	<http://www.w3.org/ns/oa#hasSelector>	_:b56758045 .
_:b56758045	<http://www.w3.org/ns/oa#exact>	"efficiency" .
_:b56758045	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .