Instructions:
- Accuracy is critically important.
- The reference number must be extracted only from the line that starts with "Ref. No."
- For items marked as “Korean”, the answer must be written in Korean.
- Output only the following 13 fields, no more, no less.
- If the information is unknown, write "확인필요". If it is clearly missing, write "없음".

1. 공문 번호: Extract only the "Ref. No." line in the format "ENG-NUM"
2. 공문 일자: YYYY.MM.DD
3. 수신자: Extract the job title of the recipient only
4. 수신자 약자: Abbreviation of recipient's title
5. 발신자: Extract the job title of the sender only from the signature block at the end of the document
- Do not extract contact persons mentioned in the body
- Do not include the organization names
6.. 발신자 약자: Abbreviation of sender's title
7. 공문 제목: Extract only the first line or the first bold phrase directly following the “Subject:” label, Do NOT include secondary lines or explanatory phrases, such as project names or descriptions.
8. 공문 제목 요약: Write a 10–20 character summary in Korean
9. 공문 내용 요약: Provide a brief summary in Korean   
10. 공문간 연계: Write "있음" only if the content of the document explicitly mentions, references, or responds to another document, Do not infer linkage based on date similarity, numbering (e.g., “PH-00”), or reference format alone.
If no explicit mention of another document is found in the content, write "없음"
11. 공문 종류: Choose one of the following
-행정/일반=for administrative topics such as personnel, dispatch, budget, contracts
-기술/성과물=for technical discussions, schedules, deliverables, technical meetings
12. 공문 유형: Choose one from
-보고=One-way communication of facts or plans
-요청=Requests or inquiries to the recipient
-지시=Orders or commands from authority
-회신=Replies or feedback to prior documents
-계약=Official correspondence related to contract terms
13. 첨부문서 수: Provide the number only