Complex sentence: Graubünden or Grisons (,;;; see also other names) is the largest and easternmost canton of Switzerland bordering Italy (Trentino-Alto Adige/South Tyrol), Austria (Vorarlberg) and Liechtenstein.
Split into simpler sentences: Graubünden or Grisons (,;;; see also other names) is the largest and easternmost canton of Switzerland. The canton shares interantional borders with Italy (Trentino-Alto Adige/South Tyrol), Austria (Vorarlberg) and Liechtenstein.