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: 'the old blender is sitting on the grass'. Is 'sitting' the longest word in the sentence?
Example Output: Yes

Example Input: Sentence: 'a woman sitting in a chair working on a lap top'. Is 'sitting' the longest word in the sentence?
Example Output: Yes

Example Input: Sentence: 'a man wearing a suit and a pair of sunglasses'. Is 'pair' the longest word in the sentence?
Example Output:
No