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

Ex Input:
Sentence: 'a woman is holding a bowl of green brocolli'. Replace the letter 'o' with 'w' in the sentence.

Ex Output:
a wwman is hwlding a bwwl wf green brwcwlli


Ex Input:
Sentence: 'a group of people are using their laptops in the dark'. Replace the letter 'p' with 'b' in the sentence.

Ex Output:
a groub of beoble are using their labtobs in the dark


Ex Input:
Sentence: 'two giraffes standing together in an outdoor park'. Replace the letter 'o' with 'd' in the sentence.

Ex Output:

twd giraffes standing tdgether in an dutdddr park