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 green slope is full of canoes up on the grass', Sentence2: 'a player on a baseball field getting ready to bat'. Is the frequency of the word 'is' in two sentences equal?
Example Output: 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: 'people placed in a picture with bears having a picnic', Sentence2: 'a teddy bear on a chair in front of a bookshelf'. Is the frequency of the word 'a' in two sentences equal?
Example Output:
No