如何定义这个Laravel关系

Hello I do have a ER diagram like below. I am thinking this is a hasmanyThrough relationship but I am not sure:

Any ideas how to define migrations and relationships for those tables ?

in User::class you can use the relation

public function organizations(){
    return $this->belongsToMany(
        Organization::class ,
        'organization_user',
        'user_id', //user key on intermediate table
        'organization_id' //organization key on intermediate table
    );
}

public function roles(){
    return $this->belongsToMany(
        Role::class ,
        'organization_user',
        'user_id', //user key on intermediate table
        'role_id' //role key on intermediate table
    );
}

more info on laravel many-to-many