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

Ex Input:
Sentence: 'a white nerd with a tie around his sweater'. Replace the letter 'i' with 'q' in the sentence.

Ex Output:
a whqte nerd wqth a tqe around hqs sweater


Ex Input:
Sentence: 'top view of a bathroom including tub, sink and toilet'. Replace the letter 'f' with 'o' in the sentence.

Ex Output:
top view oo a bathroom including tub, sink and toilet


Ex Input:
Sentence: 'people standing in an arched doorway with umbrellas'. Replace the letter 'p' with 'b' in the sentence.

Ex Output:

beoble standing in an arched doorway with umbrellas