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 giraffe standing next to a palm tree on a field'. Is 'a' the longest word in the sentence?
Example Output: No

Example Input: Sentence: 'three zebras at the zoo eating hay off the ground'. Is 'the' the longest word in the sentence?
Example Output: No

Example Input: Sentence: 'there is a horse rubbing its face against a mans chin'. Is 'rubbing' the longest word in the sentence?
Example Output:
Yes