Given the task definition and input, reply with output. 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.

Sentence1: Beth worked through her lunch and was hungry. Sentence2: She was upset to see the cafeteria was closed. Sentence3: She ran downstairs to the hot dog vendor outside. Sentence4: When she got to her desk she realized she forgot mustard.
There was no time to go back so Beth ate the hot dog dry.