Question: what crops were vital to the success of the southern colonies
[{'answer': 'indigo', 'provenance': [{'wikipedia_id': '19332721', 'title': 'Colonial South and the Chesapeake', 'start_paragraph_id': 4, 'start_character': 7, 'end_paragraph_id': 4, 'end_character': 13, 'bleu_score': 1.0, 'section': 'Section::::Colonial economics.:Agriculture.\n'}]}, {'answer': 'rice', 'provenance': [{'wikipedia_id': '19332721', 'title': 'Colonial South and the Chesapeake', 'start_paragraph_id': 4, 'start_character': 18, 'end_paragraph_id': 4, 'end_character': 22, 'bleu_score': 1.0, 'section': 'Section::::Colonial economics.:Agriculture.\n'}]}, {'answer': 'tobacco', 'provenance': [{'wikipedia_id': '19332721', 'title': 'Colonial South and the Chesapeake', 'start_paragraph_id': 4, 'start_character': 55, 'end_paragraph_id': 4, 'end_character': 62, 'bleu_score': 1.0, 'section': 'Section::::Colonial economics.:Agriculture.\n'}]}, {'provenance': [{'wikipedia_id': '19332721', 'title': 'Colonial South and the Chesapeake', 'start_paragraph_id': 4, 'start_character': 0, 'end_paragraph_id': 4, 'end_character': 303, 'bleu_score': 0.962600167205617, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 974904381089631702}, 'section': 'Section::::Colonial economics.:Agriculture.\n'}]}]