Probably should preprocess hydration step

[JasonLo]

Retrieving GPS coordinates is slow due to API rate limits, requiring about 1.5 seconds per location. For example, processing 10 locations takes 15 seconds. To increase efficiency, we can cache location data similarly to the LLM triplet extraction method by associating each paragraph with pre-retrieved coordinates. We need to verify with Sky whether GPS data is frequently needed in the output or only occasionally before deciding to implement this feature.