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

Example Input: Sentence: 'two stuffed animal bears  sitting next to a candy bar and a flower pot on a table'. Replace the letter 'd' with 'w' in the sentence.
Example Output: two stuffew animal bears  sitting next to a canwy bar anw a flower pot on a table

Example Input: Sentence: 'a person flying through the air on the kite board'. Replace the letter 'h' with 'l' in the sentence.
Example Output: a person flying tlrougl tle air on tle kite board

Example Input: Sentence: 'a giraffe standing on top of a lush green field'. Replace the letter 'o' with 'k' in the sentence.
Example Output:
a giraffe standing kn tkp kf a lush green field