"thr-parent-id" => ["post-user", "thr-parent-id"],
"conversation" => ["conversation-item-uri", "uri"],
"conversation-id" => ["post-thread-user", "conversation-id"],
"thr-parent-id" => ["post-user", "thr-parent-id"],
"conversation" => ["conversation-item-uri", "uri"],
"conversation-id" => ["post-thread-user", "conversation-id"],