Question: who were we fighting against in the vietnam war
[{'answer': 'North Vietnam', 'provenance': [{'wikipedia_id': '32611', 'title': 'Vietnam War', 'start_paragraph_id': 1, 'start_character': 325, 'end_paragraph_id': 1, 'end_character': 338, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'the Soviet Union', 'provenance': [{'wikipedia_id': '32611', 'title': 'Vietnam War', 'start_paragraph_id': 1, 'start_character': 389, 'end_paragraph_id': 1, 'end_character': 405, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'China', 'provenance': [{'wikipedia_id': '32611', 'title': 'Vietnam War', 'start_paragraph_id': 1, 'start_character': 407, 'end_paragraph_id': 1, 'end_character': 412, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'other communist allies', 'provenance': [{'wikipedia_id': '32611', 'title': 'Vietnam War', 'start_paragraph_id': 1, 'start_character': 418, 'end_paragraph_id': 1, 'end_character': 440, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '32611', 'title': 'Vietnam War', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 733, 'bleu_score': 0.6203128838599511, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12136973242526422137}, 'section': 'Section::::Abstract.'}]}]