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 of people standing on top of a snow covered slope'. Is 'standing' the longest word in the sentence?
Example Output: Yes

Example Input: Sentence: 'a vase of several flowers on a table'. Is 'several' the longest word in the sentence?
Example Output: Yes

Example Input: Sentence: 'two men jumping into the air to catch a frisbee'. Is 'jumping' the longest word in the sentence?
Example Output:
Yes