Obwalden

例句：

1. 1.The Obwalden River flows through the heart of the city.
   奥瓦尔登河流经市中心。
2. 2. He is a renowned author known for his Obwalden novels.
   他是一位著名的作家，以他的奥瓦尔登小说而闻名。
3. 3. The Obwalden Museum houses an extensive collection of artifacts from the region.
   奥瓦尔登博物馆收藏了该地区丰富的文物。