Question: what countries does the euphrates river flow through
[{'answer': 'Turkey', 'provenance': [{'wikipedia_id': '10221', 'title': 'Euphrates', 'start_paragraph_id': 1, 'start_character': 302, 'end_paragraph_id': 1, 'end_character': 308, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Syria', 'provenance': [{'wikipedia_id': '10221', 'title': 'Euphrates', 'start_paragraph_id': 1, 'start_character': 338, 'end_paragraph_id': 1, 'end_character': 343, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Iraq', 'provenance': [{'wikipedia_id': '10221', 'title': 'Euphrates', 'start_paragraph_id': 1, 'start_character': 348, 'end_paragraph_id': 1, 'end_character': 352, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '10221', 'title': 'Euphrates', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 429, 'bleu_score': 0.7000728817906431, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9642942621037779078}, 'section': 'Section::::Abstract.'}]}]