before_sent:  However, we still don't know much about the mechanism inside these internal representationsproduced by BERT . Do they have any common patterns?
before_sent_with_intent: <fluency>  However, we still don't know much about the mechanism inside these internal representationsproduced by BERT . Do they have any common patterns?
after_sent:  However, we still do not know much about the mechanism inside these internal representationsproduced by BERT . Do they have any common patterns?