_:b57897400	<http://www.w3.org/ns/oa#hasSelector>	_:b57897401 .
_:b57897401	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57897400	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/9b29d489c1d7c4db97da2d6759986e958a4d556d/3> .
_:b57897401	<http://www.w3.org/ns/oa#exact>	"maternal" .