In this task, you need to replace a letter in the sentence with another given letter.

Q: Sentence: 'a toddler on skis being held up by a grownup'. Replace the letter 'o' with 'k' in the sentence.

A: a tkddler kn skis being held up by a grkwnup
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Q: Sentence: 'two zebras are snuggling at the zoo in their display area'. Replace the letter 'e' with 'z' in the sentence.

A: two zzbras arz snuggling at thz zoo in thzir display arza
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Q: Sentence: 'a herd of cattle standing on top of a lush green hillside'. Replace the letter 'f' with 's' in the sentence.

A:
a herd os cattle standing on top os a lush green hillside
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