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 dog is sitting in a living room next to a table'. Is 'in' the longest word in the sentence?
Example Output: No

Example Input: Sentence: 'man and woman standing under a red umbrella'. Is 'umbrella' the longest word in the sentence?
Example Output: Yes

Example Input: Sentence: 'a bench is sitting outside in a field of yellow and purple flowers'. Is 'purple' the longest word in the sentence?
Example Output:
No