_:b57904509 <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/oa#TextQuoteSelector> . _:b57904509 <http://www.w3.org/ns/oa#exact> "mild" . _:b57904508 <http://www.w3.org/ns/oa#hasSelector> _:b57904509 . _:b57904508 <http://www.w3.org/ns/oa#hasSource> <http://ns.inria.fr/covid19/arg/9514e50a84f80117dbbd865222051d7ee589009b/3> .