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

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: 'bus with sheep decals in foreign language and doughnuts'. Replace the letter 'g' with 'i' in the sentence.
Example Output: bus with sheep decals in foreiin laniuaie and douihnuts

Example Input: Sentence: 'a number of people siting at a table with wine glasses'. Replace the letter 'm' with 'e' in the sentence.
Example Output:
a nueber of people siting at a table with wine glasses