Question: Is Welke Airport or George Bush Intercontinental Airport further south?
Sentence (from "George Bush Intercontinental Airport"): George Bush Intercontinental Airport (IATA: IAH, ICAO: KIAH, FAA LID: IAH) is an international airport in Houston, Texas, United States, under class B airspace, serving the Greater Houston metropolitan area, the fifth-largest metropolitan area in the United States.
Relevant evidence: Yes