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: 'three giraffes some green bushes and trees and a hill'. Is 'giraffes' the longest word in the sentence?
Example Output: Yes

Example Input: Sentence: 'a dog and a couple sitting on a wood bench'. Is 'a' the longest word in the sentence?
Example Output: No

Example Input: Sentence: 'a very tall white clock tower with a clock on each of its sides'. Is 'each' the longest word in the sentence?
Example Output:
No