Given the task definition, example input & output, solve the new input case.
In this task, you need to replace a letter in the sentence with another given letter.
Example: Sentence: 'group of motorcycle motorists trying to merge into traffic'. Replace the letter 'o' with 'n' in the sentence.
Output: grnup nf mntnrcycle mntnrists trying tn merge intn traffic
The letter 'o' has been replaced in the letter 'n'.

New input case for you: Sentence: 'an image of plate of food and wine on a table'. Replace the letter 'a' with 'x' in the sentence.
Output:
xn imxge of plxte of food xnd wine on x txble