_:b57877533 <http://www.w3.org/ns/oa#exact> "occurrence" . _:b57877532 <http://www.w3.org/ns/oa#hasSelector> _:b57877533 . _:b57877533 <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/oa#TextQuoteSelector> . _:b57877532 <http://www.w3.org/ns/oa#hasSource> <http://ns.inria.fr/covid19/arg/f294102f799f81ac9cda375e8ea273cf5912b772/0> .