_:b57028081 <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/oa#TextQuoteSelector> . _:b57028080 <http://www.w3.org/ns/oa#hasSelector> _:b57028081 . _:b57028081 <http://www.w3.org/ns/oa#exact> "pituitary stalk" . _:b57028080 <http://www.w3.org/ns/oa#hasSource> <http://ns.inria.fr/covid19/arg/c0c947d52dd2b3a8f6652f008ea1c418c39e640a/3> .