You are going to take part at the upcoming university NLP course as a mentor. Professors have asked you to create some examples for future students on Damerau-Levenshtein topic.
Provide an example of two words with Damerau–Levenshtein distance equal to .
Answer format: write the words in one line, separated by a space. Avoid using special symbols, try to come up with an answer consisting only of letters and numbers.