Question: where do arterial anastomoses occur in the body
[{'answer': 'between arteries', 'provenance': [{'wikipedia_id': '7174190', 'title': 'Circulatory anastomosis', 'start_paragraph_id': 1, 'start_character': 94, 'end_paragraph_id': 1, 'end_character': 110, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '7174190', 'title': 'Circulatory anastomosis', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 582, 'bleu_score': 0.977139080690077, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16605164370031038496}, 'section': 'Section::::Abstract.'}]}]