Question: who is the owner of marina bay sands
[{'answer': 'Las Vegas Sands', 'provenance': [{'wikipedia_id': '5299184', 'title': 'Marina Bay Sands', 'start_paragraph_id': 1, 'start_character': 88, 'end_paragraph_id': 1, 'end_character': 103, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]