_:b56227192	<http://www.w3.org/ns/oa#hasSelector>	_:b56227193 .
_:b56227192	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/2ac228ffe1cb1f1f0466a784ced88310b0b3abb3/1> .
_:b56227193	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b56227193	<http://www.w3.org/ns/oa#exact>	"ultrasound" .