(e.g., a specific textbook, a research database like ResearchGate , or an online archive).

To help me find or draft the information you need, could you please clarify:

: Images used in machine learning, biological studies, or engineering tests.

(e.g., history, medicine, computer science).

: Specific artifact or site photos from an excavation (e.g., "Fxo" might be a site code).