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 young woman hitting a tennis ball with a tennis racquet'. Is 'a' the longest word in the sentence?
Example Output: No

Example Input: Sentence: 'a couple of trains traveling down tracks next to each other'. Is 'trains' the longest word in the sentence?
Example Output: No

Example Input: Sentence: 'a young man at the pitchers mound with his leg in the air'. Is 'pitchers' the longest word in the sentence?
Example Output:
Yes