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 man walking across a street with buses and a car'. Is 'buses' the longest word in the sentence?
Example Output: No

Example Input: Sentence: 'there is a very tall building that towers over the rest of the skyline'. Is 'building' the longest word in the sentence?
Example Output: Yes

Example Input: Sentence: 'a group of people riding on the backs of horses'. Is 'people' the longest word in the sentence?
Example Output:
Yes