Question: Who were the neighbors of the Salian Franks who lived in the 4th largest city in Germany?
Sentence (from "Renton, Washington"): Today, Renton is best known as the final assembly point for the Boeing 737 family of commercial airplanes, but it is also home to a growing number of well known manufacturing, technology, and healthcare organizations, including Boeing Commercial Airplanes Division, Paccar, Kaiser Permanente, IKEA, Providence Health & Services, UW Medicine Valley Medical Center, and Wizards of the Coast.
Relevant evidence: No