instruction:
In this task, you need to replace a letter in the sentence with another given letter.
question:
Sentence: 'a man sitting in a chair with a laptop in his lap'. Replace the letter 'p' with 'v' in the sentence.
answer:
a man sitting in a chair with a lavtov in his lav


question:
Sentence: 'a red stop signed has been altered to say stop hate'. Replace the letter 'e' with 't' in the sentence.
answer:
a rtd stop signtd has bttn alttrtd to say stop hatt


question:
Sentence: 'a little boy riding a skateboard on the side walk'. Replace the letter 'a' with 'v' in the sentence.
answer:

v little boy riding v skvtebovrd on the side wvlk