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 hand held game or older cell phone'. Replace the letter 'o' with 'c' in the sentence.

Ex Output:
a hand held game cr clder cell phcne

Ex Input:
Sentence: 'a mans head posted on a femaales body playing tennis'. Replace the letter 'n' with 'w' in the sentence.

Ex Output:
a maws head posted ow a femaales body playiwg tewwis