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.

Q: Sentence: 'a man on skis at the top of a mountain'. Is 'mountain' the longest word in the sentence?

A: Yes
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Q: Sentence: 'a mini van pulling a large flatbed that is holding a bi plane on top'. Is 'flatbed' the longest word in the sentence?

A: Yes
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Q: Sentence: 'a herd of zebra and bison standing on a grass covered field'. Is 'a' the longest word in the sentence?

A:
No
****