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 that is smiling near a microwave'. Is 'near' the longest word in the sentence?
Example Output: No

Example Input: Sentence: 'a tennis player attempting to play the ball back to his opponent'. Is 'back' the longest word in the sentence?
Example Output: No

Example Input: Sentence: 'people crossing a street in a major city'. Is 'crossing' the longest word in the sentence?
Example Output:
Yes