_:b57999629	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57999629	<http://www.w3.org/ns/oa#exact>	"maternal" .
_:b57999628	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/d3ca6acccd863652e5bef86e36e8df64c2069cff/1> .
_:b57999628	<http://www.w3.org/ns/oa#hasSelector>	_:b57999629 .