Question: where is the opening ceremony commonwealth games 2018
[{'answer': 'Carrara Stadium', 'provenance': [{'wikipedia_id': '50065203', 'title': 'Venues of the 2018 Commonwealth Games', 'start_paragraph_id': 8, 'start_character': 0, 'end_paragraph_id': 8, 'end_character': 15, 'bleu_score': 1.0, 'section': 'Section::::Venues.:Main Stadium.\n'}]}]