_:b56180912	<http://www.w3.org/ns/oa#hasSelector>	_:b56180913 .
_:b56180913	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b56180913	<http://www.w3.org/ns/oa#exact>	"oxygen" .
_:b56180913	<http://www.w3.org/ns/oa#exact>	"oxygen therapy" .
_:b56180912	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/57b3f365b56a5db10967e1e3f16ade5a85eb296d/2> .