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 man going down a ramp on his skateboard at a skateboard park'. Is 'skateboard' the longest word in the sentence?
Example Output: Yes

Example Input: Sentence: 'several boats in their mooring on the coast'. Is 'coast' the longest word in the sentence?
Example Output: No

Example Input: Sentence: 'a pair of surfers approach the waters edge where the waves spread thinly over the compacted sand'. Is 'compacted' the longest word in the sentence?
Example Output:
Yes