Question: what name is given to the series of roads used by communist forces during the vietnam war
[{'answer': 'The Ho Chi Minh Trail', 'provenance': [{'wikipedia_id': '68286', 'title': 'Viet Cong', 'start_paragraph_id': 33, 'start_character': 482, 'end_paragraph_id': 33, 'end_character': 503, 'bleu_score': 1.0, 'section': 'Section::::History.:Fall of Saigon.\n'}]}, {'provenance': [{'wikipedia_id': '68286', 'title': 'Viet Cong', 'start_paragraph_id': 33, 'start_character': 0, 'end_paragraph_id': 33, 'end_character': 1007, 'bleu_score': 0.9730644290195721, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17974525765212814717}, 'section': 'Section::::History.:Fall of Saigon.\n'}]}]