Task: Question Answering
Input (English): passage: The Northern and Central Bitterroot Range, collectively the Bitterroot Mountains (Salish: čkwlkwqin ), is the largest portion of the Bitterroot Range, part of the Rocky Mountains, located in the panhandle of Idaho and westernmost Montana in the Western United States. The mountains encompass an area of 4,862 square miles (12,593 km2).
 question: are the bitterroot mountains part of the rockies?
Output (English): Yes