Question: What is the name of the American hamburger restaurant described as a "breastaurant", which features skimpily-clad female wait staff, known for serving high-calorie menu items, located in Downtown Las Vegas after it moved from Tempe, Arizona?
{'answer': 'Heart Attack Grill', 'supporting_facts': [['Breastaurant', 0], ['Breastaurant', 1], ['Breastaurant', 2], ['Heart Attack Grill', 0], ['Heart Attack Grill', 1]]}