Question: what does upper mean in world of dance
[{'answer': '18 years and older', 'provenance': [{'wikipedia_id': '35259095', 'title': 'World of Dance', 'start_paragraph_id': 4, 'start_character': 348, 'end_paragraph_id': 4, 'end_character': 366, 'bleu_score': 1.0, 'section': 'Section::::World of Dance Competitions.\n'}]}, {'provenance': [{'wikipedia_id': '35259095', 'title': 'World of Dance', 'start_paragraph_id': 4, 'start_character': 0, 'end_paragraph_id': 4, 'end_character': 550, 'bleu_score': 0.547799249524902, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16953517861838581602}, 'section': 'Section::::World of Dance Competitions.\n'}]}]