Question: who was the president of pakistan in 1993
[{'answer': 'Ghulam Ishaq Khan', 'provenance': [{'wikipedia_id': '15684232', 'title': '1993 in Pakistan', 'start_paragraph_id': 1, 'start_character': 64, 'end_paragraph_id': 1, 'end_character': 81, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '15684232', 'title': '1993 in Pakistan', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 226, 'bleu_score': 0.9466178497997021, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 497825838695422008}, 'section': 'Section::::Abstract.'}]}]