Question: what is the next pokemon series after indigo league
[{'answer': 'Adventures on the Orange Islands'}, {'provenance': [{'wikipedia_id': '7202317', 'title': 'List of Pokémon: Indigo League episodes', 'start_paragraph_id': 7, 'start_character': 255, 'end_paragraph_id': 7, 'end_character': 710, 'bleu_score': 0.6149351797000431, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3866027900034849890}, 'section': 'Section::::Overview.\n'}]}]