In this task, you need to replace a letter in the sentence with another given letter.

Example Input: Sentence: 'a study table with computer, mouse and keyboard .photo frame are also kept'. Replace the letter 'u' with 'q' in the sentence.
Example Output: a stqdy table with compqter, moqse and keyboard .photo frame are also kept

Example Input: 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.
Example Output: fhis posfer is adverfising high performance wifh a girl riding a bicycle and some faxis on fhe sfreef

Example Input: Sentence: 'the little league player is pitching a baseball'. Replace the letter 'a' with 'g' in the sentence.
Example Output:
the little leggue plgyer is pitching g bgsebgll