_:b57468220	<http://www.w3.org/ns/oa#hasSelector>	_:b57468221 .
_:b57468221	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57468221	<http://www.w3.org/ns/oa#exact>	"expression" .
_:b57468220	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/57b88add1645a89614742dc32b0e11922c5f37d2/3> .