Question: who was the mughal emperor who granted dastak to the british
[{'answer': 'Farrukhsiyar', 'provenance': [{'wikipedia_id': '1169220', 'title': 'Farrukhsiyar', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 12, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '1169220', 'title': 'Farrukhsiyar', 'start_paragraph_id': 28, 'start_character': 0, 'end_paragraph_id': 28, 'end_character': 458, 'bleu_score': 0.9408228243926111, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14442654506706096163}, 'section': 'Section::::Reign.:Trade concession.\n'}]}]