Question: where does the grand union canal start and end
[{'answer': 'starts in London', 'provenance': [{'wikipedia_id': '44268', 'title': 'Grand Union Canal', 'start_paragraph_id': 1, 'start_character': 84, 'end_paragraph_id': 1, 'end_character': 100, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'ends in Birmingham', 'provenance': [{'wikipedia_id': '44268', 'title': 'Grand Union Canal', 'start_paragraph_id': 1, 'start_character': 105, 'end_paragraph_id': 1, 'end_character': 123, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '44268', 'title': 'Grand Union Canal', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 242, 'bleu_score': 0.8302012483091991, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 190001134942900195}, 'section': 'Section::::Abstract.'}]}]