_:b57906388 <http://www.w3.org/ns/oa#hasSelector> _:b57906389 . _:b57906388 <http://www.w3.org/ns/oa#hasSource> <http://ns.inria.fr/covid19/arg/37dc8003e75c33ca7baa9f5ef979591f580566b5/3> . _:b57906389 <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/oa#TextQuoteSelector> . _:b57906389 <http://www.w3.org/ns/oa#exact> "hemagglutination" .