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 person holding a cell phone in their hand', Sentence2: 'a man flying through the air while riding a skateboard'. Is the frequency of the word 'a' in two sentences equal?
Example Output: Yes

Example Input: Sentence1: 'a man that is sitting down eating some food', Sentence2: 'two dogs sleeping on a bed covered with duvet'. Is the frequency of the word 'duvet' in two sentences equal?
Example Output: No

Example Input: Sentence1: 'a bunch of cell phones sit inside of a display case', Sentence2: 'trays of a variety of different donuts for sale'. Is the frequency of the word 'a' in two sentences equal?
Example Output:
No