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

Example Input: Sentence: 'a herd of cattle standing on a lush green field'. Replace the letter 'g' with 'f' in the sentence.
Example Output: a herd of cattle standinf on a lush freen field

Example Input: Sentence: 'the object in the photo seems to be intriguing'. Replace the letter 'c' with 'h' in the sentence.
Example Output: the objeht in the photo seems to be intriguing

Example Input: Sentence: 'a bedroom with a wood floor and four post bed that has a sliding door leading to a patio with a view of the water'. Replace the letter 'a' with 't' in the sentence.
Example Output:
t bedroom with t wood floor tnd four post bed thtt hts t sliding door letding to t pttio with t view of the wtter