_:b56257025	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b56257024	<http://www.w3.org/ns/oa#hasSelector>	_:b56257025 .
_:b56257025	<http://www.w3.org/ns/oa#exact>	"mask" .
_:b56257025	<http://www.w3.org/ns/oa#exact>	"surgical masks" .
_:b56257024	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/e3d346a89fd67d7949d80a4642aa3a3726f98395/5> .