Task: Information Extraction
Input (English): Sentence1: Carol went as usual to practice at the indoor gymnasium. Sentence2: She saw a new girl practicing under the guidance of her trainer. Sentence3: She felt irritated, because she wasn't informed about her. Sentence4: The trainer came to her and introduced her to the girl. Sentence5: She couldn't believe that the girl was her childhood friend.
Output (English): Trainer, Carol, New girl