_:b56860864 <http://www.w3.org/ns/oa#hasSource> <http://ns.inria.fr/covid19/arg/62dcf1385e0ca7d54f325cc0e70d5a0aeca60321/1> . _:b56860864 <http://www.w3.org/ns/oa#hasSelector> _:b56860865 . _:b56860865 <http://www.w3.org/ns/oa#exact> "CO 2" . _:b56860865 <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/oa#TextQuoteSelector> .