Laravel Eloquent - присоединиться к 2 таблицам через другую таблицу

Я строю отношения между двумя таблицами через третью таблицу. Всего у меня 3 таблицы.

1.) адреса

Schema::create('addresses', function (Blueprint $table) {
    $table->increments('id');
    $table->text('line_1_number_building')->nullable();
    $table->text('line
Schema::create('staffs', function (Blueprint $table) {
    $table->increments('id');
    $table->integer('staff_category_id');
    $table->integer('gender_id');
    $table->text('staff_job_title')->nullable();
    $table->text('staff_first_name')->nullable();
    $table->text('staff_middle_name')->nullable();
    $table->text('staff_last_name')->nullable();
    $table->text('staff_qualifications')->nullable();
    $table->date('staff_birth_date');
    $table->longText('other_staff_details')->nullable();
    $table->timestamps();
});
number_street')->nullable();
    $table->text('line
Schema::create('staff_addresses', function (Blueprint $table) {
    $table->increments('id');
    $table->integer('staff_id');
    $table->integer('address_id');
    $table->date('date_address_from')->nullable();
    $table->date('date_address_to')->nullable();
    $table->timestamps();
});
area_locality')->nullable();
    $table->text('city')->nullable();
    $table->text('zip_code')->nullable();
    $table->text('state_province_county')->nullable();
    $table->text('country')->nullable();
    $table->longText('other_address_details')->nullable();
    $table->timestamps();
});

2.) персонал

Schema::create('staffs', function (Blueprint $table) {
    $table->increments('id');
    $table->integer('staff_category_id');
    $table->integer('gender_id');
    $table->text('staff_job_title')->nullable();
    $table->text('staff_first_name')->nullable();
    $table->text('staff_middle_name')->nullable();
    $table->text('staff_last_name')->nullable();
    $table->text('staff_qualifications')->nullable();
    $table->date('staff_birth_date');
    $table->longText('other_staff_details')->nullable();
    $table->timestamps();
});

3.) staff_addresses

Schema::create('staff_addresses', function (Blueprint $table) {
    $table->increments('id');
    $table->integer('staff_id');
    $table->integer('address_id');
    $table->date('date_address_from')->nullable();
    $table->date('date_address_to')->nullable();
    $table->timestamps();
});

Теперь я хочу получить список всех адресов для любой записи персонала. Я попробовал код ниже, но он возвращает адреса, соответствующие идентификатору идентификатора персонала.

Что я пробовал

public function saddresses()
{
    return $this->hasManyThrough('App\addresses','App\staff_addresses','staff_id','id');
}

Что я получил

Address : [{"id":3,"line_1_number_building":"Hasan 2 line 1","line_2_number_street":"Hasan 2 line 2","line_3_area_locality":"Hasan 2 line 3","city":"Hasan 2 city","zip_code":"Hasan 2 zip code","state_province_county":"Hasan 2 state","country":"Hasan 2 country","other_address_details":"Hasan 2 other details","created_at":null,"updated_at":null,"staff_id":5},{"id":4,"line_1_number_building":"Sadiq 2 line 1","line_2_number_street":"Sadiq 2 line 2","line_3_area_locality":"Sadiq 2 line 3","city":"Sadiq 2 city","zip_code":"Sadiq 2 zip code","state_province_county":"Sadiq 2 state","country":"Sadiq 2 country","other_address_details":"Sadiq 2 other details","created_at":null,"updated_at":null,"staff_id":5}] 

Лучший вид

Подскажите пожалуйста, как построить нормальные отношения?

С уважением, Хасан Раджани.