Question: vietnam was a colony of what country prior to ww2
[{'answer': 'the French Empire', 'provenance': [{'wikipedia_id': '80356', 'title': 'History of Vietnam', 'start_paragraph_id': 5, 'start_character': 105, 'end_paragraph_id': 5, 'end_character': 122, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '80356', 'title': 'History of Vietnam', 'start_paragraph_id': 5, 'start_character': 0, 'end_paragraph_id': 5, 'end_character': 368, 'bleu_score': 0.9669306597086381, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 18154671418499793303}, 'section': 'Section::::Abstract.'}]}]