before_sent:  It has a long history in Natural Language Processing but recently gains much more attention thanks to the promising performance brought by deep learning models.
before_sent_with_intent: <clarity>  It has a long history in Natural Language Processing but recently gains much more attention thanks to the promising performance brought by deep learning models.
after_sent:  It has a long history in the field of natural language processing (NLP), but recently it has gained significant attention thanks to the promising performance brought by deep learning models.