_:b57616268 <http://www.w3.org/ns/oa#hasSelector> _:b57616269 . _:b57616269 <http://www.w3.org/ns/oa#exact> "surface" . _:b57616268 <http://www.w3.org/ns/oa#hasSource> <http://ns.inria.fr/covid19/arg/1027702151e441039ec492e11d4fd20eb7da65dc/1> . _:b57616269 <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/oa#TextQuoteSelector> .