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 bridge with a clock tower in the background'. Is 'background' the longest word in the sentence?
Example Output: Yes

Example Input: Sentence: 'a living room with a lot of furniture and big windows'. Is 'room' the longest word in the sentence?
Example Output: No

Example Input: Sentence: 'a man stands on skis near a snowy mountain'. Is 'mountain' the longest word in the sentence?
Example Output:
Yes