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

Example Input: Sentence: 'a tennis player is returning the ball on the court'. Is 'tennis' the longest word in the sentence?
Example Output: No

Example Input: Sentence: 'a black and white image of people waiting'. Is 'image' the longest word in the sentence?
Example Output:
No