Q: In this task, you're given a passage, further information available on a particular linked term from the statement, and a question. Your job is to generate the answer to the question by using the information provided. If there is no clear answer obtainable, output 'none'.
Passage: The American Locomotive Company (ALCO) assigned Kuhler to its advertising department in 1931 and commissioned him as a design consultant the following year. His first task was restyling the exterior trim of ALCO's Diesel switcher HH600 that persisted through all following variants. The next task established Kuhler's worldwide fame. The Milwaukee Road wanted a high-speed train for the competitive route between Chicago and Minneapolis. The cars were built in the company's shops, and the four A class locomotives were built by ALCO. Kuhler embellished their inverted bathtub look by a carefully colored livery. These Hiawatha trains became the fastest passenger service in the world by 1935. He had also designed the cars' interior, including the napkins and draperies in the dining car. His finned Beaver Tail observation car of the next generation was sensational, as were again the streamlined second-generation Milwaukee Road class F7 4-6-4 passenger locomotives designed by Kuhler. Also he designed the ALCO DL-109, the predecessor of world-famous ALCO PA diesel locomotives. He also designed Southern Railway (U.S.) Ps-4 class number 1380's streamlined appearance for The Tennessean in 1941. The 1380 was Southern's only streamlined steam engine.
Link Information: none Question: How big was Chicago in square miles the year ALCO assigned Kuhler to its advertising department?
A:
Answer: none