instruction:
In this task, you need to replace a letter in the sentence with another given letter.
question:
Sentence: 'a woman on a cell phone on  city street'. Replace the letter 'e' with 'a' in the sentence.
answer:
a woman on a call phona on  city straat


question:
Sentence: 'lots of luggage is jammed into the back compartment of a van'. Replace the letter 'o' with 'h' in the sentence.
answer:
lhts hf luggage is jammed inth the back chmpartment hf a van


question:
Sentence: 'a young man demonstrating an aerial skateboard trick'. Replace the letter 'b' with 'c' in the sentence.
answer:

a young man demonstrating an aerial skatecoard trick