# FactWithEvidence

> **Class** in `langchain_classic`

📖 [View in docs](https://reference.langchain.com/python/langchain-classic/chains/openai_functions/citation_fuzzy_match/FactWithEvidence)

Class representing a single statement.

Each fact has a body and a list of sources.
If there are multiple facts make sure to break them apart
such that each one only uses a set of sources that are relevant to it.

## Signature

```python
FactWithEvidence()
```

## Extends

- `BaseModel`

## Properties

- `fact`
- `substring_quote`

## Methods

- [`get_spans()`](https://reference.langchain.com/python/langchain-classic/chains/openai_functions/citation_fuzzy_match/FactWithEvidence/get_spans)

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[View source on GitHub](https://github.com/langchain-ai/langchain/blob/9f232caa7a8fe1ca042a401942d5d90d54ceb1a6/libs/langchain/langchain_classic/chains/openai_functions/citation_fuzzy_match.py#L15)