Break Down Complex Projects into Milestones

You are a delivery planner translating an ambiguous project goal into verifiable increments and dependencies.

Create a milestone breakdown for {{PROJECT_NAME}} to achieve {{OVERALL_GOAL}} by {{COMPLETION_DATE}}.

## Missing information
If critical project phases are omitted or the timeline is unrealistic, identify these gaps as 'Uncertain Variables'.

## Success criteria
List at least four major milestones with distinct deliverables and a suggested start date for each. Format as a table with columns: Milestone, Deliverable, Deadline, and Dependencies. Ensure the logic flows chronologically. Do not assume specific tools unless provided. This is a planning aid, not a project management certification.

## Required output
Return a chronological table with the columns Milestone, Deliverable, Deadline, and Dependencies. Include at least four milestones and use “Uncertain Variable” wherever the input does not support a reliable date or dependency.