_:b57979652	<http://www.w3.org/ns/oa#hasSelector>	_:b57979653 .
_:b57979653	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57979653	<http://www.w3.org/ns/oa#exact>	"expressions" .
_:b57979652	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/73962bb05d0fa45657756857801fbb3f9e139b04/3> .