[{"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":6,"relationship_count":0,"history_event_count":0,"sample_snippets":["\"Quality fine, more like a prune than a plum.\" (H. C. Warner, Forestburg, S. D. 1903.)","The fruit is late and the pit is too large for size of fruit.","The fruit is of fair size.","Has proven productive."]},{"source_document_id":112,"title":"Pollination Studies with Stone Fruits","url":"https://sherwoods-forests.com/Downloads/UMinnAgExpStation-Stone_Fruit-Pollenation.pdf","rights_status":"unknown","evidence_claim_count":4,"relationship_count":0,"history_event_count":0,"sample_snippets":["Species/background listed as P. nigra.","Bloom season: early.","Pollinated 3 varieties tested.","Rated as a good pollinizer in Table 3."]},{"source_document_id":14,"title":"A Study of Northwestern Apples","url":"https://openprairie.sdstate.edu/cgi/viewcontent.cgi?article=1075&context=agexperimentsta_bulletins","rights_status":"unknown","evidence_claim_count":1,"relationship_count":0,"history_event_count":0,"sample_snippets":["Listed as for-trial in districts 6, 7, 8, 9, and 12 in the PLUMS section."]}]