Question: Esslingen is a railway station in the Swiss canton of Zürich and the municipality of Egg, it is the outer terminus of the Forchbahn (FB) from where, which is the largest city in Switzerland and the capital of the canton of Zürich?
Sentence (from "Esslingen railway station"): It is the outer terminus of the Forchbahn (FB) from the city of Zürich, which is operated as Zürich S-Bahn service S18.
Relevant evidence: Yes