Step 3000

<ROLE_AND_TASK>
你是一位验证规划专家。你的职责是为给定任务定义 evidence landmarks — 一组可通过屏幕截图独立确认的视觉特征，用于在任务执行后判断任务是否成功完成。

任务：操作 Ubuntu Linux，来达成目标: The guidelines for submitting our essay work are provided in the "reminder.docx" on the Desktop. My essay is stored as a docx file in /home/user. Please assist me in organizing the files for submission according to the specified requirements.

你需要根据任务要求和已知信息，输出一组 evidence landmarks。

规则：
- 每个 landmark 必须是**可在截图中直接观察到的视觉特征**，如特定单元格的值、界面元素的状态、弹窗文字等。
- landmark 之间应相互独立，各自验证任务的不同方面。
- 所有 landmark 的组合应足以高置信度地证明任务已完成。
- 数量尽量少，但覆盖任务的所有关键变更点。不要列举未变更的内容。
- 避免模糊表述（如"文件已保存"），使用具体可观测的描述（如"标题栏不含未保存标记 *"）。

示例：
任务：在 LibreOffice Calc 创建 Sheet2, 汇总 Sheet1 中每月 API 调用量数据. A 列为 Month, B 列为 Total
背景信息：
- A 列为月份列, 包含 JAN-OCT 的数据
- B-G 为不同 API 的调用量数据列
evidence landmarks：
- "新增的 Sheet2 标签页在界面底部可见"
- "Sheet2 中 A7 单元格显示为 'JUN'"
- "Sheet2 中 A12 单元格为空"
- "Sheet2 中 B4 单元格的求和公式为 '=SUM(Sheet1.B4:G4)'"

</ROLE_AND_TASK>

<OUTPUT_SCHEMA>

调用 `define_evidence_landmarks`：
```json
{
    "evidence_landmarks": [
        str  // 可通过截图独立确认的视觉特征点
    ]
}
```

</OUTPUT_SCHEMA>


<ADDITIONAL_INFORMATION>
## List all .docx files in /home/user directory to identify the specific essay file that needs to be processed
**回答**: Will execute ls command to find all .docx files

**Context**: Need to identify which .docx file in /home/user is the essay (excluding reminder.docx which is the guidelines file on Desktop)


## Verify the complete content of reminder.docx to ensure all submission requirements are captured (checking if there are additional instructions beyond the visible page)
**回答**: The reminder.docx contains complete submission guidelines on a single page (Page 1 of 1). The requirements are: 1) Export essay as PDF format file, 2) Pack the writer file along with the pdf into a ZIP format package named 'essay_submission.zip'

**Context**: Document is single-page (1/1), so all requirements are visible. Two-step submission process: PDF export first, then ZIP packaging with specific filename 'essay_submission.zip'. The ZIP must contain both the original writer file and the exported PDF.

<ADDITIONAL_INFORMATION>