Question: when did beast mode by future come out
[{'answer': 'January 15 , 2015', 'provenance': [{'wikipedia_id': '47255972', 'title': 'Beast Mode (mixtape)', 'start_paragraph_id': 1, 'start_character': 137, 'end_paragraph_id': 1, 'end_character': 154, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '47255972', 'title': 'Beast Mode (mixtape)', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 294, 'bleu_score': 0.9022045190074791, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2459332992986943226}, 'section': 'Section::::Abstract.'}]}]