Question: Rätia is a EuroCity train service that linked Hamburg in Germany with Chur, is the capital and largest town of the Swiss canton of Grisons and lies in the Grisonian Rhine Valley, and are in which country?
Sentence (from "Chur"): Chur or Coire (] or ] ; Romansh: "Cuira" ] or ] ; Italian: "Coira" ] ; French: "Coire" ] ) is the capital and largest town of the Swiss canton of Grisons and lies in the Grisonian Rhine Valley, where the Rhine turns towards the north, in the northern part of the canton.
Relevant evidence: No