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": "is_valid_palindrome", "description": "Checks if a string is a valid palindrome, considering only alphanumeric characters and ignoring case.", "parameters": {"s": {"description": "The input string.", "type": "str"}}}]
Is 'Mr. Owl ate my metal worm' a valid palindrome? Also, check if 'A Santa lived as a devil at NASA' and 'A Santa lived as a devil at NASA.' are valid palindromes.
user
assistant
[{"name": "is_valid_palindrome", "arguments": {"s": "Mr. Owl ate my metal worm"}}, {"name": "is_valid_palindrome", "arguments": {"s": "A Santa lived as a devil at NASA"}}, {"name": "is_valid_palindrome", "arguments": {"s": "A Santa lived as a devil at NASA."}}]