Complex sentence: Washington County is a county located in the western part of the US state of Maryland, bordering southern Pennsylvania to the north, northern Virginia to the south, and the Eastern Panhandle of West Virginia to the south and west.
Split into simpler sentences: Washington County is a county located in the western part of the US state of Maryland. The county borders southern Pennsylvania to the north, northern Virginia to the south, and the Eastern Panhandle of West Virginia to the south and west.