Relationship between 3 Models in Laravel - development

Relationship between 3 Models in Laravel

I’m trying to make a relation between 3 Models in Laravel 5.6

Here are my tables

departments

• id
• name

subjects

• id
• name

teachers

• id
• name

teach

• id_teacher
• id_department
• id_subject

The relationship between all tables is many to many
(Teacher can teach many subjects in many department, department belongs to many subject, and subject belongs to many department)
I don’t know how to make these relationships inside The Teacher, Department and Subject Models cause there are many of them in Laravel documentation.

from Laravel Questions and Answers https://laravelquestions.com/php/relationship-between-3-models-in-laravel/
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