What is the correct Lewis structure for PH3? 
Definitions:
Forecast Error
The difference between actual demand and forecasted demand, indicating the accuracy of demand projections.
Holt's Model
A forecasting technique that extends exponential smoothing to capture trends in the data.
Alpha
In investing, alpha is a measure of performance on a risk-adjusted basis, comparing an investment's excess returns to the market's returns.
Seasonality
A pattern in data that repeats at regular intervals over time, often observed in sales, weather patterns, and agricultural production.
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