_:b57868645	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57868644	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/6739fee0e78aa14f70d34b7258f57c348fbfd709/3> .
_:b57868645	<http://www.w3.org/ns/oa#exact>	"control" .
_:b57868644	<http://www.w3.org/ns/oa#hasSelector>	_:b57868645 .