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": "reverse_string", "description": "Reverses the characters in a string.", "parameters": {"text": {"description": "The input string.", "type": "str"}}}, {"name": "word_frequency", "description": "Calculates the frequency of each word in a text.", "parameters": {"text": {"description": "The input text.", "type": "str"}}}]
Reverse the string '12345' and calculate the word frequency of 'The quick brown fox jumps over the lazy dog' without case sensitivity.
user
assistant
[{"name": "reverse_string", "arguments": {"text": "12345"}}, {"name": "word_frequency", "arguments": {"text": "The quick brown fox jumps over the lazy dog."}}]