Context: The primary city airport is George Bush Intercontinental Airport (IAH), the tenth-busiest in the United States for total passengers, and twenty eighth-busiest worldwide. Bush Intercontinental currently ranks fourth in the United States for non-stop domestic and international service with 182 destinations. In 2006, the United States Department of Transportation named IAH the fastest-growing of the top ten airports in the United States. The Houston Air Route Traffic Control Center stands on the George Bush Intercontinental Airport grounds.

Question: How does Houston's George Bush Intercontinental Airport rank for number of passengers?
Answer: tenth-busiest

Question: How many destinations does George Bush Intercontinental Airport serve?
Answer: 182

Question: When did the U.S. Department of Transportation name IAH as fastest growing of U.S. airports?
Answer: 2006

Question: Where is the Houston Air Route Traffic Control Center located?
Answer: George Bush Intercontinental Airport

Question: What is Houston's primary airport?
Answer: George Bush Intercontinental Airport

Question: How does Texas's George Bush Intercontinental Airport rank for number of passengers?
Answer: Unanswerable

Question:  How many destinations does Bill Clinton Intercontinental Airport serve?
Answer: Unanswerable

Question: When did the U.S. Department of Transportation name IAH as fastest growing of UK airports?
Answer: Unanswerable

Question:  Where is the Texas Air Route Traffic Control Center located?
Answer: Unanswerable