_:b56270656	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/6b4640e3bec7b234320da41ab90a8084d236c3e0/2> .
_:b56270657	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b56270656	<http://www.w3.org/ns/oa#hasSelector>	_:b56270657 .
_:b56270657	<http://www.w3.org/ns/oa#exact>	"face mask" .