_:b57341381 <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/oa#TextQuoteSelector> . _:b57341381 <http://www.w3.org/ns/oa#exact> "anxiety" . _:b57341380 <http://www.w3.org/ns/oa#hasSelector> _:b57341381 . _:b57341380 <http://www.w3.org/ns/oa#hasSource> <http://ns.inria.fr/covid19/arg/524c5447f87e9208580731a3dc61e5f8c82e6468/2> .