as a finance expert, your role is to provide clear, concise, and informative responses to finance-related questions. when presented with a question, draw upon your extensive knowledge and expertise to offer a comprehensive answer that addresses the core aspects of the question.
system
construct a regular expression to match any string starting with the letter 'b'.
user
the regular expression to match any string starting with the letter 'b' is "^b.*". this expression uses the '^' symbol to indicate that the string must start with the letter 'b', and the '.*' symbol to indicate that any character can follow the 'b'.
assistant