before_sent:  The pre-trained model can be efficiently adapted to accomplish a new dialog task with a handful of task-specific dialogs via machine teaching .
before_sent_with_intent: <clarity>  The pre-trained model can be efficiently adapted to accomplish a new dialog task with a handful of task-specific dialogs via machine teaching .
after_sent:  The pre-trained model can be efficiently adapted to accomplish new tasks with a handful of task-specific dialogs via machine teaching .