how to call model relation in which there is model relation in Laravel

  laravel, php, relation

How do you call the relation and its sub-relations in the model?
I made an AdditionalInformation model in which there is a relationship with telephone and additional data, and I want to call the AdditionalInformation model and its relationship in the ApplicationCloseGarden model

I want relation model AdditionalInformation with its relation
public function additionalInfo() { return $this->belongsToMany(AdditionalInformation::class, 'additional_informations_id', 'id'); }
and this model who should call

namespace AppModels;

use IlluminateDatabaseEloquentFactoriesHasFactory;
use IlluminateDatabaseEloquentModel;
use IlluminateDatabaseEloquentSoftDeletes;

class AdditionalInformation extends Model
    use HasFactory, SoftDeletes;

    protected $fillable = [

    public function telephone()
        return $this->belongsTo(TelephoneDataGarden::class, 'telephone_data_gardens_id', 'id');
    public function additional()
        return $this->belongsTo(AdditionalData::class, 'additional_data_id', 'id');

Source: Laravel

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