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: 'a couple of men standing next to each other on an airport'. Is 'next' the longest word in the sentence?
Example Output: No

Example Input: Sentence: 'a man flashes a peace sign to the photographer'. Is 'photographer' the longest word in the sentence?
Example Output: Yes

Example Input: Sentence: 'a large sign on a city street for route 66'. Is 'street' the longest word in the sentence?
Example Output:
Yes