instruction:
In this task, you need to replace a letter in the sentence with another given letter.
question:
Sentence: 'a cat is watching a computer with a video of a cat'. Replace the letter 't' with 'a' in the sentence.
answer:
a caa is waaching a compuaer wiah a video of a caa


question:
Sentence: 'a person flying through the air on the kite board'. Replace the letter 'h' with 'l' in the sentence.
answer:
a person flying tlrougl tle air on tle kite board


question:
Sentence: 'a man with a small bullhorn is wearing a hat and a tie'. Replace the letter 'a' with 'r' in the sentence.
answer:

r mrn with r smrll bullhorn is werring r hrt rnd r tie