A switchyard is a place where trains are sorted and connected to different tracks.
A switchyard can make people think of trains, travel, and big machines.
Examples:
The switchyard is where the trains go.
The switchyard is very busy today.
I saw a big switchyard with many trains.
The switchyard is like a big puzzle for trains.
In the switchyard, the trains go everywhere!
The switchyard is where the trains have a big party.