口述修改选中段落，保留未选内容和取消原稿
本页展示随包原生输入和验收参考。目标产品运行状态：未运行。表格与图片不代表产品已经生成的结果。
input.csv / practice-data.json
本课实际输入字段
| region | text | selected |
|---|---|---|
| prefix | The workshop opens at 10:00. | False |
| selected | The material budget is 120 units and is not approved. We need a second review. | True |
| suffix | Contact the fictional Lumen desk for directions. | False |
只选择预算一段
reference.csv：作者验收映射，不是目标API回包
| region | expected | action |
|---|---|---|
| prefix | byte-identical | |
| selected | shorter wording while keeping 120 and not approved | |
| suffix | byte-identical | |
| original selected text restored | cancel |
应当保留的约束
| region | expected | action |
|---|---|---|
| prefix | byte-identical | |
| selected | shorter wording while keeping 120 and not approved | |
| suffix | byte-identical | |
| original selected text restored | cancel |
故意构造的错误样例
| changed | fault |
|---|---|
| prefix time to 11:00 | selection scope crossed |
| budget approved | negation lost |
先保存真实产品输出，再逐项对照。actualOutput / actualResult 在未执行时保持 not_run，不能把这里的期望值复制成已测结果。