_:b58163720	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/f970e14b3ea1d4d1a16c671570aa65510e48ed0e/0> .
_:b58163721	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b58163721	<http://www.w3.org/ns/oa#exact>	"efficiency" .
_:b58163720	<http://www.w3.org/ns/oa#hasSelector>	_:b58163721 .