_:b57191856 <http://www.w3.org/ns/oa#hasSelector> _:b57191857 . _:b57191856 <http://www.w3.org/ns/oa#hasSource> <http://ns.inria.fr/covid19/arg/099f2cd0669c28d46e28fb442fb49ef34c8d2d9f/0> . _:b57191857 <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/oa#TextQuoteSelector> . _:b57191857 <http://www.w3.org/ns/oa#exact> "AA" .