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: 'someone riding a wave on there surf board '. Is 'a' the longest word in the sentence?
No

Sentence: 'an adult and baby cow graze on grass in a field'. Is 'field' the longest word in the sentence?
Yes

Sentence: 'a tennis player is swinging at a ball'. Is 'is' the longest word in the sentence?

No