Question: when is a medium sized dog considered a senior
[{'answer': '10 years', 'provenance': [{'wikipedia_id': '9659164', 'title': 'Aging in dogs', 'start_paragraph_id': 18, 'start_character': 167, 'end_paragraph_id': 18, 'end_character': 175, 'bleu_score': 1.0, 'section': 'Section::::Aging profile.\n'}]}, {'provenance': [{'wikipedia_id': '9659164', 'title': 'Aging in dogs', 'start_paragraph_id': 18, 'start_character': 0, 'end_paragraph_id': 18, 'end_character': 290, 'bleu_score': 0.962600167205617, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6764672349962344213}, 'section': 'Section::::Aging profile.\n'}]}]