Task: Information Extraction
Input (English): Sentence1: Yoojung was the main vocalist of her group. Sentence2: Other members of her group wanted to share singing lines with her. Sentence3: She thought it was not a good idea. Sentence4: In their upcoming concert her voice cracked. Sentence5: She apologized for being contrary to her teammates idea.
Output (English): Members, Teammates, Vocalist, Yoojung