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 number of crouch down toilets separated by stalls'. Is 'separated' the longest word in the sentence?
Example Output: Yes

Example Input: Sentence: 'a giraffe standing next to a palm tree on a field'. Is 'a' the longest word in the sentence?
Example Output: No

Example Input: Sentence: 'a stuffed toy next to a pile of vegetables'. Is 'vegetables' the longest word in the sentence?
Example Output:
Yes