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

Example Input: Sentence: 'a bathroom with a make shift shower curtain'. Replace the letter 'w' with 's' in the sentence.
Example Output: a bathroom sith a make shift shoser curtain

Example Input: Sentence: 'a person scooping from a large pot of soup on the stove into a soup bowl'. Replace the letter 'a' with 'x' in the sentence.
Example Output: x person scooping from x lxrge pot of soup on the stove into x soup bowl

Example Input: Sentence: 'a man wearing helmet with a large group of banana bunches'. Replace the letter 'g' with 'i' in the sentence.
Example Output:
a man wearini helmet with a larie iroup of banana bunches