Question: who threw major league baseballs last legal spitball
[{'answer': 'Burleigh Grimes', 'provenance': [{'wikipedia_id': '433739', 'title': 'Spitball', 'start_paragraph_id': 11, 'start_character': 60, 'end_paragraph_id': 11, 'end_character': 75, 'bleu_score': 1.0, 'section': 'Section::::Ban.\n'}]}, {'provenance': [{'wikipedia_id': '433739', 'title': 'Spitball', 'start_paragraph_id': 11, 'start_character': 0, 'end_paragraph_id': 11, 'end_character': 495, 'bleu_score': 0.9716239638199891, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 978111230376920069}, 'section': 'Section::::Ban.\n'}]}]