_:b56787669 <http://www.w3.org/ns/oa#exact> "knowledge" . _:b56787668 <http://www.w3.org/ns/oa#hasSource> <http://ns.inria.fr/covid19/arg/a0aa294f523df11670e40b31c4837a84dc5c4507/0> . _:b56787669 <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/oa#TextQuoteSelector> . _:b56787668 <http://www.w3.org/ns/oa#hasSelector> _:b56787669 .