提供两组数据 用于数据预处理使用

以下是两组示例数据：

## 数据集1：电影评论情感分类

| 评论 | 情感 |
| ------------------------------------------------------------ | ----- |
| This movie is amazing! I loved every moment of it. | 正向 |
| The acting was terrible and the plot was predictable. I wouldn't recommend it. | 负向 |
| I was pleasantly surprised by this film. It exceeded my expectations. | 正向 |
| Save your money and skip this movie. It was a waste of time. | 负向 |

## 数据集2：新闻分类

| 标题 | 分类 |
| ------------------------------------------------------------ | -------- |
| SpaceX successfully launches Falcon Heavy rocket carrying 24 satellites | 科技 |
| Trump administration announces new tariffs on Chinese imports | 政治 |
| Beyoncé drops surprise album "Homecoming" on Netflix | 娱乐 |
| Study finds link between social media use and mental health issues | 科学健康 |