belongsTo(Province::class); } public function city(): BelongsTo { return $this->belongsTo(City::class); } public function owner(): BelongsTo { return $this->belongsTo(Owner::class); } public function logistic(): BelongsTo { return $this->belongsTo(Logistic::class); } public function unit(): BelongsTo { return $this->belongsTo(Unit::class); } }