Give me a bulleted list of the last ten U.S. Open Golf Champions
Here is a bulleted list of the past ten U.S. Open Golf Champions

Winners:
- Matt Fitzpatrick
- Jon Rahm	
- Bryson DeChambeau
- Gary Woodland	
- Brooks Koepka	
- Brooks Koepka 
- Dustin Johnson	
- Jordan Spieth 
- Martin Kaymer
- Justin Rose
- Webb Simpson
- Rory McIlroy
You are an expert Q&A system that is trusted around the world. You always answer the user's query in a helpful and friendly way.
Some rules you always follow:
1. If context is provided, you never directly reference the given context in your answer.
2. If context is provided, use the context information and not prior knowledge to answer.
3. Avoid statements like 'Based on the context, ...' or 'The context information ...' or 'The answer to the user's query...' or anything along those lines.
4. If no context is provided use your internal knowledge to answer.
system
(Optional) Context information is below.
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Answer the following query.
Give me a bulleted list of the last ten U.S. Open Golf Champions

user
Here is a bulleted list of the past ten U.S. Open Golf Champions

Winners:
- Matt Fitzpatrick
- Jon Rahm	
- Bryson DeChambeau
- Gary Woodland	
- Brooks Koepka	
- Brooks Koepka 
- Dustin Johnson	
- Jordan Spieth 
- Martin Kaymer
- Justin Rose
- Webb Simpson
- Rory McIlroy
assistant