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: 'two red street signs are posted on a building'. Is 'on' the longest word in the sentence?
Example Output: No

Example Input: Sentence: 'a woman in a leather jacket sitting on a bus'. Is 'sitting' the longest word in the sentence?
Example Output: Yes

Example Input: Sentence: 'man outside taking part in a winter sport'. Is 'sport' the longest word in the sentence?
Example Output:
No