In this task, answer 'Yes' if the frequency of the given word in the two sentences is equal, else answer 'No'.

Example Input: Sentence1: 'a group of people standing behind a line of parked motorcycles', Sentence2: 'cat on top of pole looking out a window'. Is the frequency of the word 'a' in two sentences equal?
Example Output: No

Example Input: Sentence1: 'a potluck buffet set up on a long table', Sentence2: 'a guy with a backpack and umbrella walking down the road'. Is the frequency of the word 'a' in two sentences equal?
Example Output: Yes

Example Input: Sentence1: 'a little girl holding a hot dog and a drink', Sentence2: 'a herd of sheep grazing on a green hillside'. Is the frequency of the word 'hillside' in two sentences equal?
Example Output:
No