instruction:
In this task, you need to replace a letter in the sentence with another given letter.
question:
Sentence: 'a large elephant that has people all around it'. Replace the letter 'h' with 'm' in the sentence.
answer:
a large elepmant tmat mas people all around it


question:
Sentence: 'a couple sits on a bench in the countryside'. Replace the letter 'y' with 'k' in the sentence.
answer:
a couple sits on a bench in the countrkside


question:
Sentence: 'a person is surfing on a wave in the ocean'. Replace the letter 'p' with 'a' in the sentence.
answer:

a aerson is surfing on a wave in the ocean