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.

Sentence: 'an image of military guy on a tank'. Is 'on' the longest word in the sentence?
No

Sentence: 'a mirror shot of a dog with its head out of the window'. Is 'shot' the longest word in the sentence?
No

Sentence: 'a couple of elephants standing in a grass covered field'. Is 'elephants' the longest word in the sentence?

Yes