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 giraffe sticks its tongue out in the air'. Replace the letter 'e' with 'l' in the sentence.
answer:
a giraffl sticks its tongul out in thl air


question:
Sentence: 'two laptop computers are sitting on a table'. Replace the letter 't' with 'c' in the sentence.
answer:

cwo lapcop compucers are siccing on a cable