before_sent:  Waiting in Nairobi Silva and Carter had prepared carefully for the trip. They stopped in Nairobi on their way to Sudan.
before_sent_with_intent: <coherence>  Waiting in Nairobi Silva and Carter had prepared carefully for the trip. They stopped in Nairobi on their way to Sudan.
after_sent:  Waiting in Nairobi Silva and Carter stopped in Nairobi on their way to Sudan.