韩K半场：双方半场0射正，主队半场换3人，蔚山0-0济州（韩K半场：蔚山0-0济州，双方0射正，主队中场连换三人）

Crafting halftime report

The user provided a Chinese statement about a halftime report for the K League match: Ulsan vs Jeju, with a score of 0-0 and no shots on target. It seems they want a brief summary or update. I’ll assume the intent is to generate a halftime report that includes key stats, tactical notes, and an outlook for the second half, all in Chinese. I’ll keep it concise based on instructions.Preparing halftime report

I should remember to avoid adding too many specifics that aren’t provided. Instead, I'll focus on generic analysis and a second-half outlook. It makes sense to mention low-quality chances and the stalemate, suggesting that Ulsan might be controlling possession.

The home team made three substitutions, indicating the coach’s intent to adjust strategy, but I won’t go into details about those changes. I’ll structure the report in Chinese with a few concise bullet points. Let’s do this!Creating report header

I don't need heavy formatting, but a small header could work well. It's okay to use headers as long as they're brief and formatted correctly, so I think I can use 半场战报 for the title. I should keep it simple without adding extra blank lines before the bullets.

Adding a brief line or two for context is a good idea too. Let's proceed with that structure, keeping everything concise and clear!