Question: who had the first dog as a pet
[{'answer': 'human hunter - gatherers', 'provenance': [{'wikipedia_id': '5141410', 'title': 'Origin of the domestic dog', 'start_paragraph_id': 46, 'start_character': 202, 'end_paragraph_id': 46, 'end_character': 228, 'bleu_score': 1.0, 'section': 'Section::::Dog domestication.\n'}]}]