Task: Text Completion
Input (English): Sentence1: The coworker had started bossing her around at work. Sentence2: The coworker even talked behind her back. Sentence3: Linda went to her boss with the issue and the boss mediated them. Sentence4: Linda and the coworker ended up being best friends.
Output (English): 1, Linda began to have problems with a coworker at her job.