Definition: In this task, you're given a four sentences of story written in natural language. Your job is to complete end part of the story by predicting appropriate last sentence which is coherent with the given sentences.
Input: Sentence1: Iva and Brant were trying to conceive a child. Sentence2: They had been trying for six months with no success. Sentence3: At their doctor's appointment, they expressed discouragement. Sentence4: But then they saw the doctor smiling broadly.

The couple will be happy to know they have a baby on the way.