Creating Relations between tables

hello sir, i am new at Backendless. please help me to find out solution this problem. I want to create Relations in tables for managing Likes and Comments on image by users.

Hi!

For new Backendless users we have list of tutorials in our blog:
https://backendless.com/feature-121-adding-objects-with-relations-using-rest-console/
https://backendless.com/users-and-relations-in-java-and-android/
Regards,
Kate.