_:b57455580	<http://www.w3.org/ns/oa#hasSelector>	_:b57455581 .
_:b57455581	<http://www.w3.org/ns/oa#exact>	"efficiency" .
_:b57455580	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/3fc2fcede0c81fc352ecc4a74e89c5d96f0b431b/0> .
_:b57455581	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .