Question: what is the current generation of ipad mini
[{'answer': 'iPad Mini 4', 'provenance': [{'wikipedia_id': '37422285', 'title': 'IPad Mini', 'start_paragraph_id': 2, 'start_character': 422, 'end_paragraph_id': 2, 'end_character': 433, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '37422285', 'title': 'IPad Mini', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 433, 'bleu_score': 0.928680631194693, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 833299691393887036}, 'section': 'Section::::Abstract.'}]}]