Definition: In this task, you're given a question, along with a context passage. The passage will not have a direct answer to the question, but can include some information and a clue for the answer. Assuming you can only obtain information about one entity in the passage, your job is to determine whether information from the passage can be used to answer the question. Indicate your choice as `a` for Yes or `b` for No.
Input: Question: Was the group that built the improved Devils Canyon Road formed before or after the Washington State Department of Transportation? Passage:Devils Canyon was originally home to the Portland–Spokane line of the Spokane, Portland and Seattle Railway, completed in 1908 with a small tunnel near the north bank of the Snake River. The United States Army Corps of Engineers built an improved Devils Canyon Road to connect Kahlotus to a grain facility owned by the newly established Port of Kahlotus in 1961. The Lower Monumental Dam on the Snake River was completed in February 1969 and opened in May of the same year at the south end of Devils Canyon. The rail line fell into disuse by 1987 and the right-of-way was acquired by the Washington State Park System in 1991 to become the Columbia Plateau Trail. The road was designated as State Route 263 (SR 263) in 1991 and signed into law on April 1, 1992 to serve the Port of Kahlotus, now the Port of Windust, and connect to the existing SR 260 in Kahlotus. No major revisions have occurred since the signing of the highway in 1961, however a landslide in July 2012 closed the highway for two days as Washington State Department of Transportation crews cleared up to of debris and later repairing damaged asphalt.


b