_:b56162505	<http://www.w3.org/ns/oa#exact>	"US" .
_:b56162504	<http://www.w3.org/ns/oa#hasSelector>	_:b56162505 .
_:b56162504	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/a39776a72fffb1862a9b00e083d11d5290917dc7/0> .
_:b56162505	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b56162505	<http://www.w3.org/ns/oa#exact>	"lung ultrasound" .