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

Ex Input:
Sentence: 'a group of people play a video game in a living room'. Replace the letter 'p' with 'u' in the sentence.

Ex Output:
a grouu of ueoule ulay a video game in a living room


Ex Input:
Sentence: 'giraffes behind a fence in the trees'. Replace the letter 'h' with 'l' in the sentence.

Ex Output:
giraffes belind a fence in tle trees


Ex Input:
Sentence: 'a giraffe standing alone in  a large grassy field'. Replace the letter 'o' with 'w' in the sentence.

Ex Output:

a giraffe standing alwne in  a large grassy field