instruction:
In this task, you need to replace a letter in the sentence with another given letter.
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: 'batter is twisted up as he took a swing at the baseball'. Replace the letter 'h' with 'i' in the sentence.
answer:
batter is twisted up as ie took a swing at tie baseball


question:
Sentence: 'ornate classical style blue and gold ceramic urn'. Replace the letter 'u' with 'x' in the sentence.
answer:

ornate classical style blxe and gold ceramic xrn