a clear blue sky.
A set of train tracks.
trains are not on the tracks
four engine train cars
utility poles connecting wire
wires strung between utility poles
trains in a train yard
Four trains in a train yard
Four trains next to each other
Electrical lines on poles
four trains on a field 
field is covered with snow
railroads of trains on a field
power lines on top of trains
several trains are stopped on train tracks in the snow