Question: What is the name of the property company that developed the Dubai Opera and is one of the largest real estate developments in the world?
Sentence (from "Mohamed Alabbar"): Alabbar, who acts as a top adviser to the Ruler of Dubai and Vice President and Prime Minister of the United Arab Emirates, Sheikh Mohammed bin Rashid Al Maktoum, formerly served as the founding director general of the Dubai Department of Economic Development.
Relevant evidence: No