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> Canadian Pacific's Galt Subdivision is Canadian Pacific's 114.6 mile long section of its Montréal-Detroit freight corridor. <P0-S1>  It is located in Southern Ontario, Canada. <P0-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. <P0-S3>  GO Transit's Milton GO train service operates on this line from Toronto Union Station to Milton GO station. <P0-S4>  The rest of the line plays host to mixed freight and intermodal traffic, from Toronto to termini like Detroit, and Chicago. <P0-S5>  This Central Ontario line also had CP passenger rail service till 1971 when it was eliminated. <P0-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. <SEP> <P1-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. <P1-S1>  It is operated by Canadian Pacific Railway through its primary United States subsidiary, the Soo Line Railroad. <P1-S2>  This had previously been owned by the Chicago, Milwaukee, St. Paul and Pacific Railroad, commonly known as the Milwaukee Road. <P1-S3>  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. <P1-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> <P2-S0> The Empire Builder is a daily passenger train operated by Amtrak that runs between Chicago and the Pacific Northwest. <P2-S1>  The route has two segments west of Spokane that serve two termini, Seattle and Portland. <SEP> <P3-S0>  There is also the first EDD (Defect Detector) at 000179.1. <P3-S1>  There is a crossover from 99 to 12, also a crossover from 12 to 3. <P3-S2>  At Chicken Pike, trains are staged to await arrival to Radnor yard. <P3-S3>  Dispatch for the Henderson Sub is known as "SA" and operates on AAR58. <P3-S4>  Then tracks run south to Fogg St/South End where things get complicated. <P3-S5>  At this point, trains had been running at track speed of around 40. <P3-S6>  The northern part of the Terminal is in Madison, Tennessee at milepost 000/0BA 174 on the southern end of the Ex-L&N Mainline Subdivision at Monfort. <P3-S7>  The right side turns into a single track shortly, and will become the Chattanooga Subdivision, and the left side runs south to Brentwood. <P3-S8>  The #2 track meets the E-Line arrival track which most Memphis trains and locals use. <P3-S9>  Trains sometimes stop on the #2 before Craighead if they are waiting to enter Radnor yard. <P3-S10>  The tracks from left to right in Kayne Ave are as follows: 100, 99, 98, 12, 3. <P3-S11>  The main runs south for 2 more miles until the Intermediate signals at 000183.0. <P3-S12>  This is the Wye track that connects the main with the Bruceton side, while rarely used for mainline trains, locals and river jobs use it. <P3-S13>  Now speed has been increased. <P3-S14>  And there is also a connection/delivery track to the Nashville and Eastern Railroad which connects the Tennessee Central Railroad Museum to a major railroad.