Question: paleolithic art including cave art and portable art began during what period
[{'answer': 'Upper Palaeolithic', 'provenance': [{'wikipedia_id': '334819', 'title': 'Prehistoric art', 'start_paragraph_id': 3, 'start_character': 199, 'end_paragraph_id': 3, 'end_character': 217, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '334819', 'title': 'Prehistoric art', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 1009, 'bleu_score': 0.7342060238111451, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8805523298538119862}, 'section': 'Section::::Abstract.'}]}]