<http://schema.org/relatedLink>
<https://en-us.help.blackboard.com/Community_Engagement/Administrator/130_Blackboard_Communication_HQ_App/030_Messages_in_Communication_HQ_Mobile_App/060_Cancel_Messages>
<https://en-us.help.blackboard.com/Community_Engagement/Administrator/130_Blackboard_Communication_HQ_App/030_Messages_in_Communication_HQ_Mobile_App/050_Send_Pictures>