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 mother buffalo is walking across the prairie with her two calves'. Is 'two' the longest word in the sentence?
Example Output: No

Example Input: Sentence: 'a man laying on a bench reading a book'. Is 'book' the longest word in the sentence?
Example Output: No

Example Input: Sentence: 'a toilet is stopped up with yellow liquid in a grungy bathroom'. Is 'a' the longest word in the sentence?
Example Output:
No