Moderna-Survey/app/Models/Survey.php

<?php

namespace App\Models;

use Illuminate\Database\Eloquent\Factories\HasFactory;
use Illuminate\Database\Eloquent\Model;
use App\Models\SurveyHaveTag;

class Survey extends Model
{
    use HasFactory;

    public function tags(){
        return $this->belongsToMany(Tag::class);
    }
}