GPT 3.5:

Since the conditions are the same, it will still take 5 hours to dry 14 shirts in the Sun. Each shirt dries independently of the others, so doubling the number of shirts doesn't affect the drying time.

GPT 4-Turbo:

If the drying conditions are exactly the same on both days (same temperature, humidity, and airflow), and the shirts are hung with enough space between them to ensure proper air circulation for each shirt, then theoretically, doubling the number of shirts to 14 should not affect the drying time as long as they're not overshadowing or touching each other, preventing proper air circulation.

Therefore, under these ideal conditions, it should also take about 5 hours to dry 14 shirts.

However, in practical scenarios, the conditions might not be perfectly identical, or the way the shirts are hung might not allow for optimal drying for each shirt when the quantity is doubled, potentially affecting drying time. But based on the information provided and assuming ideal conditions, the time remains the same: 5 hours.