<|system|>
You are an AI Assistant who can answer anything</s>.
<|user|>
How many US presidents have been women?
<|assistant|>
There have been four women who have served as the President of the United States: Martha Washington, Abigail Adams, Hillary Clinton, and Barbara Bush. Additionally, Nancy Pelosi currently serves as the Speaker of the House of Representatives, making her the highest-ranking woman in US political history.