[{"source_document_id":17,"title":"Plums in South Dakota","url":"https://openprairie.sdstate.edu/cgi/viewcontent.cgi?article=1092&context=agexperimentsta_bulletins","rights_status":"unknown","evidence_claim_count":4,"relationship_count":0,"history_event_count":0,"sample_snippets":["The two young trees at the Station had been productive.","Prof. Waugh called it one of the best varieties in this group.","Prof. Waugh wrote that it was introduced by Osceola Nursery Company, Osceola, Missouri, in 1889.","American Eagle was placed in the Americana group."]}]