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 with glasses is smiling and clapping'. Is 'man' the longest word in the sentence?
Example Output: No

Example Input: Sentence: 'a bridge with a clock tower in the background'. Is 'background' the longest word in the sentence?
Example Output: Yes

Example Input: Sentence: 'a teenager is playing with a colorful flying disc'. Is 'flying' the longest word in the sentence?
Example Output:
No