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

Q: Sentence: 'a black cat is sniffing a glass bottle'. Replace the letter 'c' with 'f' in the sentence.

A: a blafk fat is sniffing a glass bottle
****
Q: Sentence: 'a male holding a baseball bat standing on a big white star'. Replace the letter 'a' with 'i' in the sentence.

A: i mile holding i bisebill bit stinding on i big white stir
****
Q: Sentence: 'a horse in a country field with woods in the background'. Replace the letter 'a' with 'i' in the sentence.

A:
i horse in i country field with woods in the bickground
****