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 red european passenger train sitting on the rails'. Is 'passenger' the longest word in the sentence?
Example Output: Yes

Example Input: Sentence: 'two men are playing frisbee on a game field while several people watch'. Is 'playing' the longest word in the sentence?
Example Output: Yes

Example Input: Sentence: 'a man an a child wearing skis in the snow'. Is 'an' the longest word in the sentence?
Example Output:
No