_:b57608396 <http://www.w3.org/ns/oa#hasSource> <http://ns.inria.fr/covid19/arg/891adb48f822d8e7f4749448ea5e2b4828c9aae5/1> . _:b57608397 <http://www.w3.org/ns/oa#exact> "immune response" . _:b57608397 <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/oa#TextQuoteSelector> . _:b57608396 <http://www.w3.org/ns/oa#hasSelector> _:b57608397 .