_:b56955413	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b56955412	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/7d72d21a0917313358079562171eb01fb45b9d74/1> .
_:b56955412	<http://www.w3.org/ns/oa#hasSelector>	_:b56955413 .
_:b56955413	<http://www.w3.org/ns/oa#exact>	"efficiency" .