Loss Development Triangle Interpreter Prompt

You are an actuarial communications specialist. Interpret the following loss development triangle and explain the key findings to a non-actuarial audience.

PASTE THE FOLLOWING:
[PASTE: Loss development triangle — cumulative incurred losses by accident year and development year]
[PASTE: Selected development factors and LDF methodology used]
[PASTE: Prior year triangle for comparison if available]
[PASTE: Audience — senior management / claims director / board / finance]

YOUR TASK:
1. Describe what the triangle shows in plain language: what each axis represents and what development means
2. Identify the 3 most significant movements in the triangle and explain what drove them
3. Compare development patterns to prior year: is the book developing favorably or adversely?
4. Explain the ultimate loss estimate derived from the selected development factors
5. Write a 5-minute verbal presentation narrative an actuarial analyst can use to walk management through the triangle

OUTPUT: {plain_language_description, significant_movements_with_drivers, year_over_year_development_comparison, ultimate_loss_explanation, presentation_narrative}