document: {"document":{"title":"na","text":"We offer several e-mail newsletters and listservs. If you no longer wish to receive a specific newsletter, you may opt out by following the \"\"unsubscribe\"\" instructions located near the bottom of each newsletter. ","paragraphs":null,"sentences":null,"language":null},"classifications":[{"level":"document-Union","labels":["User Choice/Control"],"label_definitions":null}]}