_:b56339253 <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/oa#TextQuoteSelector> . _:b56339252 <http://www.w3.org/ns/oa#hasSource> <http://ns.inria.fr/covid19/arg/a05a7e8a28e7de7d685db8f4989aec8f3e8dfa41/4> . _:b56339252 <http://www.w3.org/ns/oa#hasSelector> _:b56339253 . _:b56339253 <http://www.w3.org/ns/oa#exact> "chemotherapy" .