Fixed key word error

Backend/Models/KeyWord.php

@@ -0,0 +1,14 @@
+<?php
+namespace Backend\Models;
+use Illuminate\Database\Eloquent\Model as Eloquent;
+class KeyWord extends Eloquent{
+    protected $fillable =[
+        'keyWord'
+    ];
+
+
+    public function group(){
+        return $this->belongsTo(Group::class);
+    }
+
+}