Question: How many termini does the train that runs on the C&M subdivision and runs between Chicago and the Pacific Northwest serve?

<P0-S0> The Empire Builder is a daily passenger train operated by Amtrak that runs between Chicago and the Pacific Northwest. <P0-S1>  The route has two segments west of Spokane that serve two termini, Seattle and Portland. <SEP> <P1-S0>  At 000181.0, Maplewood is a major location for the Terminal. <P1-S1>  At 00J3.6 known as A-1. <P1-S2>  From here, the main continues south until the CR Cumberland River Swingbridge, where the main converges into a single track shortly to cross the bridge. <P1-S3>  At Danley, the Terminal ends but the same dispatcher handles traffic, "SC". <P1-S4>  From there, the cutoff hits the Intermediates at 0BA187.0 known as Chicken Pike. <P1-S5>  At this point, trains had been running at track speed of around 40. <P1-S6>  The main runs south for 2 more miles until the Intermediate signals at 000183.0. <P1-S7>  The #2 track meets the E-Line arrival track which most Memphis trains and locals use. <P1-S8>  This is where the Radnor A yard meets the main. <P1-S9>  This is also where the Ex-NC&StL Chattanooga Subdivision begins. <P1-S10>  The tracks from left to right in Kayne Ave are as follows: 100, 99, 98, 12, 3. <P1-S11>  At Oak Street, our main terminal line goes south two miles to 000189.0 known as Criaghead or Vine Hill. <P1-S12> The Nashville Terminal Subdivision is a railroad line owned by CSX Transportation in the U.S. State of Tennessee. <P1-S13>  About 2/10ths of a mile down the 99 merges into the 12 track reducing the tracks back to the regular double. <P1-S14>  From here the Terminal runs about 2.5 miles south until we hit the southern tip. <SEP> <P2-S0> The Chicago and Milwaukee Subdivision (commonly referred to as the C&M Subdivision or C&M Sub) is a railway line running between Chicago, Illinois and Milwaukee, Wisconsin. <P2-S1>  It is operated by Canadian Pacific Railway through its primary United States subsidiary, the Soo Line Railroad. <P2-S2>  It carries Amtrak's "Empire Builder" and "Hiawatha Service", as well as commuter trains operated on part of Metra's Milwaukee District/North Line into Chicago. <P2-S3>  This had previously been owned by the Chicago, Milwaukee, St. Paul and Pacific Railroad, commonly known as the Milwaukee Road. <P2-S4>  The Union Pacific Railroad operates their Milwaukee Subdivision, a former Chicago and North Western line, parallel to this route just to the east. <SEP> <P3-S0> Canadian Pacific's Galt Subdivision is Canadian Pacific's 114.6 mile long section of its Montréal-Detroit freight corridor. <P3-S1>  It is located in Southern Ontario, Canada. <P3-S2>  Getting its name from the historic City of Galt (now the City of Cambridge) that it passes through, the track runs from the bustling hub of Toronto, Ontario, to London, Ontario. <P3-S3>  GO Transit's Milton GO train service operates on this line from Toronto Union Station to Milton GO station. <P3-S4>  The rest of the line plays host to mixed freight and intermodal traffic, from Toronto to termini like Detroit, and Chicago. <P3-S5>  This Central Ontario line also had CP passenger rail service till 1971 when it was eliminated. <P3-S6>  Passenger rail service would be partly restored halfway through the line through the introduction of GO Transit operations in 1981 westward only as far as the Town of Milton.