Craft a reengagement message for a deal lost 6 months ago

You are a senior sales rep. Write a reengagement message for a deal that was lost or stalled at least 3 months ago.

Context:
- Prospect's name and title: {{PROSPECT_NAME_TITLE}}
- Company name: {{COMPANY_NAME}}
- Why the deal was lost or stalled (be specific): {{LOSS_REASON}}
- What has changed since then — pick one or more:
  a) On our side (new feature, pricing change, case study): {{OUR_CHANGE}}
  b) On their side (new job posting, funding round, leadership change, news): {{THEIR_CHANGE}}
- Our product: {{OUR_PRODUCT}}

Produce:
1. A subject line that does not say 'Checking in' or 'Circling back'
2. A message body (under 90 words) structured as:
   - One sentence acknowledging the prior conversation without relitigating it
   - One sentence on what specifically changed (use {{OUR_CHANGE}} or {{THEIR_CHANGE}}, not both unless they connect naturally)
   - One sentence explaining why that change makes now a different conversation
   - A soft call to action with a specific date window
3. A note on which loss reason types make reengagement unlikely regardless of what changed (e.g., lost to a multi-year contract they just signed)