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

Ex Input:
Sentence: 'large stuffed toy bear sitting next to tree with assortment of bagged items'. Replace the letter 'y' with 'u' in the sentence.

Ex Output:
large stuffed tou bear sitting next to tree with assortment of bagged items


Ex Input:
Sentence: 'a house cat sits on an oven door, sniffing the oven racks inside'. Replace the letter 'i' with 'y' in the sentence.

Ex Output:
a house cat syts on an oven door, snyffyng the oven racks ynsyde


Ex Input:
Sentence: 'someone man a birthday boy a cake with a green dragon on it'. Replace the letter 't' with 'v' in the sentence.

Ex Output:

someone man a birvhday boy a cake wivh a green dragon on iv