title: How to get custom label in page conversation via facebook graph api?
body: <p>I want to get custom labels in page conversation via facebook graph api.
  I found out from here. 
  <a href="https://developers.facebook.com/docs/graph-api/reference/v2.11/conversation" rel="nofollow noreferrer">https://developers.facebook.com/docs/graph-api/reference/v2.11/conversation</a></p>
  
  <p>But I can not find. 
  I want to know, Can facebook graph api get custom label in page conversation?</p>