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 group stands under an old buildings balcony'. Is 'buildings' the longest word in the sentence?
Example Output: Yes

Example Input: Sentence: 'a person is holding a black cellphone in their hand'. Is 'a' the longest word in the sentence?
Example Output: No

Example Input: Sentence: 'a man with a tennis racquet that is on a tennis court'. Is 'tennis' the longest word in the sentence?
Example Output:
No