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

Input: Consider Input: Sentence: 'a motorcycle sitting on the side of the road by grass'. Replace the letter 'r' with 't' in the sentence.

Output: a mototcycle sitting on the side of the toad by gtass


Input: Consider Input: Sentence: 'a man in a field standing as a ball comes through the air towards him'. Replace the letter 'u' with 'j' in the sentence.

Output: a man in a field standing as a ball comes throjgh the air towards him


Input: Consider Input: Sentence: 'one wall in the room is flanked by a lovely piece of furniture which displays several object d'art'. Replace the letter 'n' with 'z' in the sentence.


Output: oze wall iz the room is flazked by a lovely piece of furziture which displays several object d'art