Modelling a relationship using ER diagram

Question

I am working Entity Relationship Diagram for my project... I am trying to represent the below lines in to my Entity Relationship Diagram-

An amtrak serves many cities, and a city may have multiple amtraks.

I am not able to post my image here with the solution I have as it needs atleast 10 reputation and which I don't have.

Can anyone tell me how we can represent the above relationship using ER diagram?

I was thinking of using One to Many?

Answer 1

You've got a many to many relationship.