_:b56409836	<http://www.w3.org/ns/oa#hasSelector>	_:b56409837 .
_:b56409837	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b56409837	<http://www.w3.org/ns/oa#exact>	"maternal" .
_:b56409836	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/474577b4b00f752bb006264193e8bcb39b12614b/2> .