_:b57304860	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/5e9845261ba6d975979e83ca6310ee843998956f/4> .
_:b57304861	<http://www.w3.org/ns/oa#exact>	"operating room" .
_:b57304860	<http://www.w3.org/ns/oa#hasSelector>	_:b57304861 .
_:b57304861	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .