_:b57931889	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/oa#TextQuoteSelector> .
_:b57931888	<http://www.w3.org/ns/oa#hasSource>	<http://ns.inria.fr/covid19/arg/93bffcc1371315b640e4783c412e0a4572744762/2> .
_:b57931889	<http://www.w3.org/ns/oa#exact>	"alpha" .
_:b57931888	<http://www.w3.org/ns/oa#hasSelector>	_:b57931889 .