_:b57794468	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/f4844ddda91e210301cef04e1c79213679000861/0> .
_:b57794469	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57794468	<http://www.w3.org/ns/oa#hasSelector>	_:b57794469 .
_:b57794469	<http://www.w3.org/ns/oa#exact>	"mean" .