# PairwiseStringResultOutputParser

> **Class** in `langchain_classic`

📖 [View in docs](https://reference.langchain.com/python/langchain-classic/evaluation/comparison/eval_chain/PairwiseStringResultOutputParser)

A parser for the output of the PairwiseStringEvalChain.

## Signature

```python
PairwiseStringResultOutputParser()
```

## Extends

- `BaseOutputParser[dict]`

## Methods

- [`parse()`](https://reference.langchain.com/python/langchain-classic/evaluation/comparison/eval_chain/PairwiseStringResultOutputParser/parse)

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[View source on GitHub](https://github.com/langchain-ai/langchain/blob/f2bf626ccee0a0e88d560706d4fdad35e43116e5/libs/langchain/langchain_classic/evaluation/comparison/eval_chain.py#L99)