How to have multiple colliders refer to different UI text?

Im trying to have UI text apear when the player enters a collider. Looking around i found this nice C# script from a tutorial ( here https://www.youtube.com/watch?v=D6ggcMdm9_4)

 using UnityEngine;
 using UnityEngine.UI;
 using System.Collections;
 
 public class fadeEffects : MonoBehaviour {
 
     public Text _eventText;
     public float fadeSpeed = 5f;
     public bool entrance;
     public GameObject _canvasAreal;
 
     void Awake () 
 
     {
 
         _eventText = _canvasAreal.GetComponentInChildren<Text> ();
         _eventText.color = Color.clear;
 
     }
 
     void Update () 
 
     {
         ColorChange();
     }
 
     void OnTriggerEnter (Collider col)
     {
         if (col.gameObject.tag == "Player")
         {
             entrance = true;
         } 
 
     }
 
     void OnTriggerExit (Collider col)
     {
         if (col.gameObject.tag == "Player")
         {
             entrance = false;                       
 
         } 
 
     }
 
     void ColorChange () 
 
     {
 
         if (entrance)
         {
             _eventText.color = Color.Lerp (_eventText.color, Color.black, fadeSpeed * Time.deltaTime);
 
         }
 
         if (!entrance)
         {
             _eventText.color = Color.Lerp (_eventText.color, Color.clear, fadeSpeed * Time.deltaTime);
         }
 
     }
 }

but every time I enter play mode all the colliders refer to only one UI text. I have been trying different solutions but I simple have no idea how to make so every collider refers to only one UI text
How can I do that ?

Thanks for your time : )