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

Example Input: Sentence: 'two men running for a soccer ball on a field'. Replace the letter 'd' with 'a' in the sentence.
Example Output: two men running for a soccer ball on a fiela

Example Input: Sentence: 'there is a purse on the floor with its contents spilled out'. Replace the letter 'd' with 'v' in the sentence.
Example Output: there is a purse on the floor with its contents spillev out

Example Input: Sentence: 'close up of an open toilet seat in a bathroom'. Replace the letter 'i' with 'w' in the sentence.
Example Output:
close up of an open towlet seat wn a bathroom