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

Ex Input:
Sentence: 'a woman walks by with a large suitcase and a polka dot umbrella'. Replace the letter 'e' with 'n' in the sentence.

Ex Output:
a woman walks by with a largn suitcasn and a polka dot umbrnlla


Ex Input:
Sentence: 'a dog standing near a potted plant outside'. Replace the letter 'a' with 'j' in the sentence.

Ex Output:
j dog stjnding nejr j potted pljnt outside


Ex Input:
Sentence: 'a man pointing at a police motorcycle  and officer'. Replace the letter 'a' with 'j' in the sentence.

Ex Output:

j mjn pointing jt j police motorcycle  jnd officer