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

Ex Input:
Sentence: 'a person on a surfboard riding in ocean waves'. Replace the letter 's' with 'g' in the sentence.

Ex Output:
a pergon on a gurfboard riding in ocean waveg


Ex Input:
Sentence: 'a family opens gifts in a room with their dog, while sitting on couches'. Replace the letter 's' with 'l' in the sentence.

Ex Output:
a family openl giftl in a room with their dog, while litting on couchel


Ex Input:
Sentence: 'a body of water with a boat full of passengers sitting on the deck'. Replace the letter 'o' with 'h' in the sentence.

Ex Output:

a bhdy hf water with a bhat full hf passengers sitting hn the deck