instruction:
In this task, you need to replace a letter in the sentence with another given letter.
question:
Sentence: 'a single person is working in the cluttered kitchen'. Replace the letter 'n' with 'e' in the sentence.
answer:
a siegle persoe is workieg ie the cluttered kitchee

question:
Sentence: 'a skier in the midst of a jump'. Replace the letter 'm' with 'd' in the sentence.
answer:
a skier in the didst of a judp

question:
Sentence: 'two people happily playing frisbee at the park'. Replace the letter 'o' with 'u' in the sentence.
answer:
twu peuple happily playing frisbee at the park