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 group of people riding skateboards at a skate park', Sentence2: 'this is a tray with food and a drink on it'. Is the frequency of the word 'riding' in two sentences equal?
Example Output: No

Example Input: Sentence1: 'various pastries on display on shelves in a store', Sentence2: 'a tennis player with a racket and a ball'. Is the frequency of the word 'ball' in two sentences equal?
Example Output: No

Example Input: Sentence1: 'a view of a door from the middle of a living room', Sentence2: 'a man riding down the side of a skateboard ramp'. Is the frequency of the word 'a' in two sentences equal?
Example Output:
No