_:b56574352	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/da2a78f45192237af6105158aa84f4509b6e20fd/0> .
_:b56574352	<http://www.w3.org/ns/oa#hasSelector>	_:b56574353 .
_:b56574353	<http://www.w3.org/ns/oa#exact>	"surface" .
_:b56574353	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .