instruction:
In this task, you need to replace a letter in the sentence with another given letter.
question:
Sentence: 'a couple of people that are petting a horse'. Replace the letter 'e' with 'p' in the sentence.
answer:
a couplp of ppoplp that arp pptting a horsp


question:
Sentence: 'a man who is surfing in a wave in the ocean'. Replace the letter 'a' with 'u' in the sentence.
answer:
u mun who is surfing in u wuve in the oceun


question:
Sentence: 'five women smile as they pose near a large cake'. Replace the letter 'r' with 'e' in the sentence.
answer:

five women smile as they pose neae a laege cake