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

Example Input: Sentence: 'a close up of a bathroom sink with soap and tooth brushes in a cup'. Replace the letter 't' with 'y' in the sentence.
Example Output: a close up of a bayhroom sink wiyh soap and yooyh brushes in a cup

Example Input: Sentence: 'a seafood dish served over a bowl of white rice'. Replace the letter 'e' with 'u' in the sentence.
Example Output: a suafood dish survud ovur a bowl of whitu ricu

Example Input: Sentence: 'a woman holding a stuffed bear looking away from the camera'. Replace the letter 'o' with 'v' in the sentence.
Example Output:
a wvman hvlding a stuffed bear lvvking away frvm the camera