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

Example Input: Sentence1: 'people playing a game in a wood gated field', Sentence2: 'a teddy bear sits next to a small pair of black boots'. Is the frequency of the word 'a' in two sentences equal?
Example Output: Yes

Example Input: Sentence1: 'a young man is standing away from the traffic', Sentence2: 'a man in a white uniform holds a bat with two other men on a baseball field'. Is the frequency of the word 'a' in two sentences equal?
Example Output: No

Example Input: Sentence1: 'there is a green vase with lots of flowers', Sentence2: 'a brown horse standing behind a chain link fence'. Is the frequency of the word 'a' in two sentences equal?
Example Output:
No