Question: who played the doctor on deep space nine
[{'answer': 'Alexander Siddig', 'provenance': [{'wikipedia_id': '302783', 'title': 'Alexander Siddig', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 16, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]