Turn one research signal into a cold email that doesn't read like a template

I'm writing a cold email to Priya Menon, VP of Operations at Fenwick Logistics. I want to open with ONE specific, real signal about them or their company — not a generic compliment.

The trigger/signal I found: Posted on LinkedIn last week about opening a third regional warehouse
What we sell: route-planning software for multi-warehouse logistics teams
The specific problem it solves that connects to this trigger: A third warehouse usually means route planning that worked for two locations starts breaking down
What I want them to do next: Worth a 15-minute call next week, or is this not the right time?

Write a cold email following this structure, each part as ONE sentence except where noted:
1. OBSERVATION — reference Posted on LinkedIn last week about opening a third regional warehouse specifically enough that they could not mistake this for a mass email. No "I noticed you're the VP of Operations at Fenwick Logistics" openers — that's not a signal, that's a mail-merge field.
2. RELEVANCE — connect the observation to a problem Fenwick Logistics likely has right now, using A third warehouse usually means route planning that worked for two locations starts breaking down. Do not pitch yet.
3. VALUE — one sentence naming what we do, framed as the solution to the problem just named, not a feature list.
4. ASK — Worth a 15-minute call next week, or is this not the right time?, framed as a low-friction yes/no question, not "let me know if you're interested."

Constraints: under 90 words total. No "I hope this email finds you well." No em dashes. Write 3 variants that differ in the observation-to-relevance bridge, not just synonym-swapping, so I can see genuinely different angles.

After the 3 variants, tell me honestly whether Posted on LinkedIn last week about opening a third regional warehouse is strong enough to build an email around, or too generic to use — say so even if it means the answer is "this one's weak."