Fact

The fact used in grounding.

Fields
query string

Query that is used to retrieve this fact.

title string

If present, it refers to the title of this fact.

uri string

If present, this uri links to the source of the fact.

summary string

If present, the summary/snippet of the fact.

vectorDistance
(deprecated) number

If present, the distance between the query vector and this fact vector.

score number

If present, according to the underlying Vector DB and the selected metric type, the score can be either the distance or the similarity between the query and the fact and its range depends on the metric type.

For example, if the metric type is COSINE_DISTANCE, it represents the distance between the query and the fact. The larger the distance, the less relevant the fact is to the query. The range is [0, 2], while 0 means the most relevant and 2 means the least relevant.

chunk object (RagChunk)

If present, chunk properties.

JSON representation 
{ "query": string, "title": string, "uri": string, "summary": string, "vectorDistance": number, "score": number, "chunk": { object (RagChunk) } }