instruction:
In this task, you need to replace a letter in the sentence with another given letter.
question:
Sentence: 'a baby pokes his head out of a suitcase'. Replace the letter 'u' with 's' in the sentence.
answer:
a baby pokes his head ost of a ssitcase


question:
Sentence: 'a black man is smoking a cigarette outside a shop'. Replace the letter 'm' with 'p' in the sentence.
answer:
a black pan is spoking a cigarette outside a shop


question:
Sentence: 'a bear foraging in the grass on a hill'. Replace the letter 'g' with 'm' in the sentence.
answer:

a bear foraminm in the mrass on a hill