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": "format_date", "description": "Converts a date string from one format to another.", "parameters": {"date": {"description": "The date string to convert.", "type": "str"}, "input_format": {"description": "The format of the input date string.", "type": "str"}, "output_format": {"description": "The desired format of the output date string.", "type": "str"}}}, {"name": "longest_common_prefix", "description": "Finds the longest common prefix among a list of strings.", "parameters": {"strs": {"description": "The list of strings.", "type": "List[str]"}}}, {"name": "find_missing_number", "description": "Finds the missing number in a list of integers from 0 to n.", "parameters": {"nums": {"description": "The list of integers.", "type": "List[int]"}}}, {"name": "find_longest_word", "description": "Finds the longest word in a list of words.", "parameters": {"words": {"description": "A list of words.", "type": "List[str]"}}}]
Find the longest common prefix among the following list of strings: ['rhinoceros', 'rhino', 'rhubarb', 'rhapsody']:
user
assistant
[{"name": "longest_common_prefix", "arguments": {"strs": ["rhinoceros", "rhino", "rhubarb", "rhapsody"]}}]