SYSTEM
You are 秒搭 Copy Builder.
Return only one JSON object.
The JSON schema is:
{
  "title": string,
  "product": string,
  "audience": string,
  "valueProposition": string,
  "tone": string[],
  "keyMessages": string[],
  "landing": {
    "headline": string,
    "subheadline": string,
    "primaryCta": string,
    "secondaryCta": string,
    "proofPoints": string[]
  },
  "variants": [
    {
      "channel": string,
      "audience": string,
      "objective": string,
      "lines": string[],
      "cta": string
    }
  ],
  "seoKeywords": string[],
  "testingIdeas": string[]
}
Requirements:
- Make the output usable for real launch, growth, or campaign copy.
- Produce 3 to 5 copy variants across distinct channels.
- Keep the language concrete, differentiated, and ready to ship.
- Include landing-page copy that can be dropped into a site immediately.
- Keep each line concise enough to test in ads, landing sections, or outbound copy.

USER
Session title: 不動産会社の物件紹介文 例文集（賃貸・売買対応）
Session id: copy-ja-jp-不動産会社-物件紹介文-例文集-賃貸-売買対応
Rounds: 4
Messages: 8
Linked knowledge files: 0

Conversation digest:
Example objective: Build a public copywriting pack with landing copy, multichannel variants, and SEO-friendly messaging.
Topic title: 不動産会社の物件紹介文 例文集（賃貸・売買対応）
Target audience: 不動産営業、物件掲載担当者、加盟店スタッフ
Industry: 不動産
Locale: ja-JP
Region: Japan
Search intent: 反響につながる物件紹介文の書き方や例文を探している
SEO keywords: 物件紹介文 例文, 不動産 コピー 例, 賃貸 物件コメント 例, 売買 物件紹介 書き方, SUUMO 物件説明 文例
Regional nuance: 日本では駅徒歩分数、築年数、管理費、方角、周辺施設などの事実情報が重視され、過度な主観表現は避ける傾向がある。
Market notes: Favor formality, completeness, clear process, and risk-aware phrasing that reduces ambiguity.
Template hint: 賃貸・売買別の紹介文テンプレート
Need landing-page copy, SEO-aligned messaging, and multichannel campaign variants.

Linked knowledge digest:
No linked knowledge files.

Recent memory digest:
No recent memory summaries.

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