_:b56228656	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/bb9f6cef633c9baf595daae5166b11f88c1271cb/3> .
_:b56228657	<http://www.w3.org/ns/oa#exact>	"Surgical masks" .
_:b56228657	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b56228656	<http://www.w3.org/ns/oa#hasSelector>	_:b56228657 .