Question: who is the newly elected chief justice of pakistan
[{'answer': 'Mian Saqib Nisar'}, {'provenance': [{'wikipedia_id': '844250', 'title': 'Chief Justice of Pakistan', 'start_paragraph_id': 4, 'start_character': 0, 'end_paragraph_id': 4, 'end_character': 113, 'bleu_score': 0.5636465749570341, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11198454720089902255}, 'section': 'Section::::Abstract.'}]}]