instruction:
In this task, you need to replace a letter in the sentence with another given letter.
question:
Sentence: 'a young man playing tennis and preparing to hit the ball'. Replace the letter 'e' with 'c' in the sentence.
answer:
a young man playing tcnnis and prcparing to hit thc ball

question:
Sentence: 'some tracks for a rail way system near a building'. Replace the letter 'a' with 'h' in the sentence.
answer:
some trhcks for h rhil why system nehr h building

question:
Sentence: 'a building with art work and a sidewlak with afire hydrant on it'. Replace the letter 's' with 'e' in the sentence.
answer:
a building with art work and a eidewlak with afire hydrant on it