 
 <prompt> Wetin be di entity wey relate to di 4th ranking? Based on di last question, write one context wey contain di answer. E fit be 1 - 20 sentences. Context: <response>: ```Primary city airport na George Bush Intercontinental Airport (IAH), wey be di tenth-busiest for United States for total passengers, and twenty eighth-busiest worldwide. Bush Intercontinental dey rank fourth for United States for non-stop domestic and international service with 182 destinations. For 2006, United States Department of Transportation name IAH as di fastest-growing of di top ten airports for United States. Houston Air Route Traffic Control Center dey for George Bush Intercontinental Airport grounds.``` 