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: 'two giraffes one of which is eating from a tree'. Is 'giraffes' the longest word in the sentence?
Example Output: Yes

Example Input: Sentence: 'a big rusty pole with some assorted signs on it'. Is 'it' the longest word in the sentence?
Example Output: No

Example Input: Sentence: 'a group of small boats floating down a river'. Is 'floating' the longest word in the sentence?
Example Output:
Yes