1) Suitable for:
a) Light Freight
b) General Freight
c) Heavy Freight
d) Steep Hills
e) Light Passenger
f) General Passenger
g) Express Passenger
h) Light Passenger or Freight
i) Passenger or Freight
j) Heavy Passenger or Freight
k) Fast Passenger or Freight
2) "the means by which the locomotive can heat and power passenger cars" - this needs to be only a couple of words!
a) Steam heating
b) HEP from separate generator
c) HEP from traction system
d) Self-powered
3a) Wood burning [steam locomotive]
3b) Heavy [steam locomotive]
3c) Streamlined [steam locomotive]
3d) Steam, Diesel, Electric, Turbine, Fuel Cell [locomotive types]
4a) Gear Ratio
4b) Regearing
4c) Regearable
5a) HEP Generator Car
5b) Clerestory, Coach, Diner, Sleeper, Observation, Dome, Buffet, Baggage, Bilevel [passenger car types]
6a) Cab control with:
6b) Special Feature: Tilt[ing train]
7a) Maximum train length is six cars
7b) This train requires more power cars to haul more trailers
7c) This car is too old to be converted
7d) This locomotive cannot heat/power passenger cars
7e) This train can only haul (bilevel) passenger (and mail) cars
7f) The [Interurban] can only haul passenger and express cars
8a) This train requires a caboose
8b) A caboose is required by freight trains
8c) A caboose is not required after 1975: trains will use a flashing rear-end device (FRED) instead
8d) Snowplow requires a pusher locomotive
9a) Container [a flatcar that carries containers]
9b) Piggyback [a flatcar that carries a semi-trailer]
9c) [a flatcar that carries] Logs
9d) [a flatcar that carries] Pulpwood
0) [car types]
a) (Bilevel) Passenger Car
b) Mail Car
c) Express Car
d) (2-Bay, Large, Covered) Hopper Car
e) Tank Car
f) (Modern) Livestock Car
g) (Hicube [overheight]) Boxcar
h) Gondola
i) (Express, Centerbeam) Flatcar
j) Caboose
k) Steel Coil Car
l) Autorack [Car Carrier]
m) Refrigerator Car
n) Intermodal Container Car
That should do for now.
And what is it? HEP? 
