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 passenger plane flies in the sky over a forest'. Is 'passenger' the longest word in the sentence?
Example Output: Yes

Example Input: Sentence: 'a woman is walking with an unusual umbrella'. Is 'umbrella' the longest word in the sentence?
Example Output: Yes

Example Input: Sentence: 'a person is riding a wave on a surfboard'. Is 'a' the longest word in the sentence?
Example Output:
No