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 striped cat standing on a window seal', Sentence2: 'the chocolate cake has strawberries on the top'. Is the frequency of the word 'a' in two sentences equal?
Example Output: No

Example Input: Sentence1: 'a white tile bathroom with double sinks and two mirrors', Sentence2: 'a skate boarder doing a trick with his board'. Is the frequency of the word 'a' in two sentences equal?
Example Output: No

Example Input: Sentence1: 'a very big travel bus with passengers  waiting on their luggage', Sentence2: 'people on a car driving past elephants and a hippo'. Is the frequency of the word 'a' in two sentences equal?
Example Output:
No