before_sent:  However, it is often overlooked that the decoder only has a single view of the source sequences, that is , the representations generated by the last encoder layer , which is supposed to be a  global view of source sequences .
before_sent_with_intent: <clarity>  However, it is often overlooked that the decoder only has a single view of the source sequences, that is , the representations generated by the last encoder layer , which is supposed to be a  global view of source sequences .
after_sent:  However, it is often overlooked that the decoder obtains only a single view of the source sequences, that is , the representations generated by the last encoder layer , which is supposed to be a global view of source sequences .