In this task, you need to replace a letter in the sentence with another given letter.
--------
Question: Sentence: 'this poster is advertising high performance with a girl riding a bicycle and some taxis on the street'. Replace the letter 't' with 'f' in the sentence.

Answer: fhis posfer is adverfising high performance wifh a girl riding a bicycle and some faxis on fhe sfreef


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: 'a stop sign is covered with stickers and graffiti'. Replace the letter 'r' with 'j' in the sentence.

Answer:
a stop sign is covejed with stickejs and gjaffiti