Question: how long is a player on waivers in mlb
[{'answer': 'three business days', 'provenance': [{'wikipedia_id': '2422219', 'title': 'Major League Baseball transactions', 'start_paragraph_id': 19, 'start_character': 305, 'end_paragraph_id': 19, 'end_character': 324, 'bleu_score': 1.0, 'section': 'Section::::Waivers.\n'}]}, {'provenance': [{'wikipedia_id': '2422219', 'title': 'Major League Baseball transactions', 'start_paragraph_id': 19, 'start_character': 0, 'end_paragraph_id': 19, 'end_character': 443, 'bleu_score': 0.974188104609039, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15933919379477279460}, 'section': 'Section::::Waivers.\n'}]}]