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: Mother told her children it would be lunchtime in fifteen minutes. Sentence2: But then she got an important phone call. Sentence3: While she was talking, the dog dragged mud all over the kitchen. Sentence4: The kids started to pester their mother, who was still on the phone.

The mother felt quite frustrated.