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 man walking in front of a grand building', Sentence2: 'a white street sign sitting on the side of a driveway'. 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: 'a baseball player throwing the bat after hitting the ball', Sentence2: 'a one way street sign next to tall bushes'. Is the frequency of the word 'a' in two sentences equal?
Example Output:
Yes