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 young man is leading a cooking demonstration'. Is 'demonstration' the longest word in the sentence?
Example Output: Yes

Example Input: Sentence: 'a busy market sports colorful umbrellas that shade the vendors'. Is 'umbrellas' the longest word in the sentence?
Example Output: Yes

Example Input: Sentence: 'a large metallic refrigerator in a small kitchen'. Is 'refrigerator' the longest word in the sentence?
Example Output:
Yes