# question-answer
## Desription
Prompt to answer a question.
## Code Example
### Example
```python
from towhee import ops, pipe
import requests
towhee_docs = requests.get('https://raw.githubusercontent.com/towhee-io/towhee/main/README.md').context
p = (
pipe.input('question', 'docs', 'history')
.map(('question', 'docs', 'history'), 'prompt', ops.prompt.question_answer())
.map('prompt', 'answer', ops.LLM.OpenAI())
.output('answer')
)
an1 = p('Tell me something about Towhee', [towhee_docs], []).get()[0]
an2 = p('Give an example', [towhee_docs], [('Tell me something about Towhee', an1)]).get()[0]
```
## Factory Constructor
Create the operator via the following factory method:
***ops.prompt.question_answer()***
**Returns:** *List[Dict]*