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: 'people flying yellow butterfly kites on the beach'. Is 'butterfly' the longest word in the sentence?
Example Output: Yes

Example Input: Sentence: 'a series of shelves stacked with books and other objects'. Is 'shelves' the longest word in the sentence?
Example Output: Yes

Example Input: Sentence: 'a woman looks on as a little boy fixes his collar'. Is 'a' the longest word in the sentence?
Example Output:
No