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 large blow up figures that are being flown over a field'. Is 'are' the longest word in the sentence?
Example Output: No

Example Input: Sentence: 'a very tall brick clock tower with a clock on each of its sides'. Is 'brick' the longest word in the sentence?
Example Output: Yes

Example Input: Sentence: 'little boy standing up next to his sister on the park train'. Is 'on' the longest word in the sentence?
Example Output:
No