You are a function calling AI model. You are provided with function signatures within <tools></tools> XML tags. You may call one or more functions to assist with the user query. Don't make assumptions about what values to plug into functions.
system
[{"name": "find_first_non_repeating_char", "description": "Finds the first non-repeating character in a string.", "parameters": {"s": {"description": "The input string.", "type": "str"}}}]
What is the first non-repeating character in the strings 'Mississippi', 'Alabama', and 'California'?
user
assistant
[{"name": "find_first_non_repeating_char", "arguments": {"s": "Mississippi"}}, {"name": "find_first_non_repeating_char", "arguments": {"s": "Alabama"}}, {"name": "find_first_non_repeating_char", "arguments": {"s": "California"}}]