instruction:
In this task, you need to replace a letter in the sentence with another given letter.
question:
Sentence: 'a woman is playing tennis on the tennis court'. Replace the letter 'r' with 'z' in the sentence.
answer:
a woman is playing tennis on the tennis couzt


question:
Sentence: 'a man swinging at a tennis with a racquet on a court'. Replace the letter 't' with 'c' in the sentence.
answer:
a man swinging ac a cennis wich a racquec on a courc


question:
Sentence: 'a pole hold three street signs displaying various messages'. Replace the letter 'h' with 'u' in the sentence.
answer:

a pole uold turee street signs displaying various messages