During grounded research, Gemini is constrained via structured output to return a JSON array of facts, where each fact string contains a nested list of sources detailing the supporting url and optional title.
flowchart TD
A[Grounded Research Call] --> B[JSON Output]
B --> C[Fact Object 1]
B --> D[Fact Object N]
C --> E["fact: string"]
C --> F["sources: array"]
F --> G["Source 1: url, title"]
F --> H["Source M: url, title"]Referenced by