Your question is Pattern Matching for Words. Start with the requirements on the right.
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Convoy's shipment tools may need to filter candidate labels that follow the same repeated-character structure as a requested pattern. Given an array of words and a pattern, return every word that matches the pattern through a one-to-one character mapping.
A word matches when each character in the pattern consistently maps to one character in the word, and no two different pattern characters map to the same word character. Preserve the original word order.
Implement find_and_replace_pattern(words, pattern), where words is a list of lowercase strings and pattern is a lowercase string. Return a list containing every word with the same length and bijective character structure as pattern.
def find_and_replace_pattern(words, pattern):