In this task, you need to answer 'Yes' if the given word is the longest word (in terms of number of letters) in the given sentence, else answer 'No'. Note that there could be multiple longest words in a sentence as they can have the same length that is the largest across all words in that sentence.

Example Input: Sentence: 'the cat is laying down on the back of the chair'. Is 'laying' the longest word in the sentence?
Example Output: Yes

Example Input: Sentence: 'a group of people skiing in a line down a trail'. Is 'people' the longest word in the sentence?
Example Output: Yes

Example Input: Sentence: 'a journal notebook keys book and backpack on a beige couch'. Is 'notebook' the longest word in the sentence?
Example Output:
Yes