_:b57657320 <http://www.w3.org/ns/oa#hasSelector> _:b57657321 . _:b57657321 <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/oa#TextQuoteSelector> . _:b57657321 <http://www.w3.org/ns/oa#exact> "forming" . _:b57657320 <http://www.w3.org/ns/oa#hasSource> <http://ns.inria.fr/covid19/arg/2bfe70ed52c64f411cc18caa58b60eb2520ed913/6> .